
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global = global || self, global.Vue = factory());
  }(this, function () { 'use strict';
  
	/*  */
  
	var emptyObject = Object.freeze({});
  
	// These helpers produce better VM code in JS engines due to their
	// explicitness and function inlining.
	function isUndef (v) {
	  return v === undefined || v === null
	}
  
	function isDef (v) {
	  return v !== undefined && v !== null
	}
  
	function isTrue (v) {
	  return v === true
	}
  
	function isFalse (v) {
	  return v === false
	}
  
	/**
	 * Check if value is primitive.
	 */
	function isPrimitive (value) {
	  return (
		typeof value === 'string' ||
		typeof value === 'number' ||
		// $flow-disable-line
		typeof value === 'symbol' ||
		typeof value === 'boolean'
	  )
	}
  
	/**
	 * Quick object check - this is primarily used to tell
	 * Objects from primitive values when we know the value
	 * is a JSON-compliant type.
	 */
	function isObject (obj) {
	  return obj !== null && typeof obj === 'object'
	}
  
	/**
	 * Get the raw type string of a value, e.g., [object Object].
	 */
	var _toString = Object.prototype.toString;
  
	function toRawType (value) {
	  return _toString.call(value).slice(8, -1)
	}
  
	/**
	 * Strict object type check. Only returns true
	 * for plain JavaScript objects.
	 */
	function isPlainObject (obj) {
	  return _toString.call(obj) === '[object Object]'
	}
  
	function isRegExp (v) {
	  return _toString.call(v) === '[object RegExp]'
	}
  
	/**
	 * Check if val is a valid array index.
	 */
	function isValidArrayIndex (val) {
	  var n = parseFloat(String(val));
	  return n >= 0 && Math.floor(n) === n && isFinite(val)
	}
  
	function isPromise (val) {
	  return (
		isDef(val) &&
		typeof val.then === 'function' &&
		typeof val.catch === 'function'
	  )
	}
  
	/**
	 * Convert a value to a string that is actually rendered.
	 */
	function toString (val) {
	  return val == null
		? ''
		: Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
		  ? JSON.stringify(val, null, 2)
		  : String(val)
	}
  
	/**
	 * Convert an input value to a number for persistence.
	 * If the conversion fails, return original string.
	 */
	function toNumber (val) {
	  var n = parseFloat(val);
	  return isNaN(n) ? val : n
	}
  
	/**
	 * Make a map and return a function for checking if a key
	 * is in that map.
	 */
	function makeMap (
	  str,
	  expectsLowerCase
	) {
	  var map = Object.create(null);
	  var list = str.split(',');
	  for (var i = 0; i < list.length; i++) {
		map[list[i]] = true;
	  }
	  return expectsLowerCase
		? function (val) { return map[val.toLowerCase()]; }
		: function (val) { return map[val]; }
	}
  
	/**
	 * Check if a tag is a built-in tag.
	 */
	var isBuiltInTag = makeMap('slot,component', true);
  
	/**
	 * Check if an attribute is a reserved attribute.
	 */
	var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
  
	/**
	 * Remove an item from an array.
	 */
	function remove (arr, item) {
	  if (arr.length) {
		var index = arr.indexOf(item);
		if (index > -1) {
		  return arr.splice(index, 1)
		}
	  }
	}
  
	/**
	 * Check whether an object has the property.
	 */
	var hasOwnProperty = Object.prototype.hasOwnProperty;
	function hasOwn (obj, key) {
	  return hasOwnProperty.call(obj, key)
	}
  
	/**
	 * Create a cached version of a pure function.
	 */
	function cached (fn) {
	  var cache = Object.create(null);
	  return (function cachedFn (str) {
		var hit = cache[str];
		return hit || (cache[str] = fn(str))
	  })
	}
  
	/**
	 * Camelize a hyphen-delimited string.
	 */
	var camelizeRE = /-(\w)/g;
	var camelize = cached(function (str) {
	  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
	});
  
	/**
	 * Capitalize a string.
	 */
	var capitalize = cached(function (str) {
	  return str.charAt(0).toUpperCase() + str.slice(1)
	});
  
	/**
	 * Hyphenate a camelCase string.
	 */
	var hyphenateRE = /\B([A-Z])/g;
	var hyphenate = cached(function (str) {
	  return str.replace(hyphenateRE, '-$1').toLowerCase()
	});
  
	/**
	 * Simple bind polyfill for environments that do not support it,
	 * e.g., PhantomJS 1.x. Technically, we don't need this anymore
	 * since native bind is now performant enough in most browsers.
	 * But removing it would mean breaking code that was able to run in
	 * PhantomJS 1.x, so this must be kept for backward compatibility.
	 */
  
	/* istanbul ignore next */
	function polyfillBind (fn, ctx) {
	  function boundFn (a) {
		var l = arguments.length;
		return l
		  ? l > 1
			? fn.apply(ctx, arguments)
			: fn.call(ctx, a)
		  : fn.call(ctx)
	  }
  
	  boundFn._length = fn.length;
	  return boundFn
	}
  
	function nativeBind (fn, ctx) {
	  return fn.bind(ctx)
	}
  
	var bind = Function.prototype.bind
	  ? nativeBind
	  : polyfillBind;
  
	/**
	 * Convert an Array-like object to a real Array.
	 */
	function toArray (list, start) {
	  start = start || 0;
	  var i = list.length - start;
	  var ret = new Array(i);
	  while (i--) {
		ret[i] = list[i + start];
	  }
	  return ret
	}
  
	/**
	 * Mix properties into target object.
	 */
	function extend (to, _from) {
	  for (var key in _from) {
		to[key] = _from[key];
	  }
	  return to
	}
  
	/**
	 * Merge an Array of Objects into a single Object.
	 */
	function toObject (arr) {
	  var res = {};
	  for (var i = 0; i < arr.length; i++) {
		if (arr[i]) {
		  extend(res, arr[i]);
		}
	  }
	  return res
	}
  
	/* eslint-disable no-unused-vars */
  
	/**
	 * Perform no operation.
	 * Stubbing args to make Flow happy without leaving useless transpiled code
	 * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
	 */
	function noop (a, b, c) {}
  
	/**
	 * Always return false.
	 */
	var no = function (a, b, c) { return false; };
  
	/* eslint-enable no-unused-vars */
  
	/**
	 * Return the same value.
	 */
	var identity = function (_) { return _; };
  
	/**
	 * Generate a string containing static keys from compiler modules.
	 */
	function genStaticKeys (modules) {
	  return modules.reduce(function (keys, m) {
		return keys.concat(m.staticKeys || [])
	  }, []).join(',')
	}
  
	/**
	 * Check if two values are loosely equal - that is,
	 * if they are plain objects, do they have the same shape?
	 */
	function looseEqual (a, b) {
	  if (a === b) { return true }
	  var isObjectA = isObject(a);
	  var isObjectB = isObject(b);
	  if (isObjectA && isObjectB) {
		try {
		  var isArrayA = Array.isArray(a);
		  var isArrayB = Array.isArray(b);
		  if (isArrayA && isArrayB) {
			return a.length === b.length && a.every(function (e, i) {
			  return looseEqual(e, b[i])
			})
		  } else if (a instanceof Date && b instanceof Date) {
			return a.getTime() === b.getTime()
		  } else if (!isArrayA && !isArrayB) {
			var keysA = Object.keys(a);
			var keysB = Object.keys(b);
			return keysA.length === keysB.length && keysA.every(function (key) {
			  return looseEqual(a[key], b[key])
			})
		  } else {
			/* istanbul ignore next */
			return false
		  }
		} catch (e) {
		  /* istanbul ignore next */
		  return false
		}
	  } else if (!isObjectA && !isObjectB) {
		return String(a) === String(b)
	  } else {
		return false
	  }
	}
  
	/**
	 * Return the first index at which a loosely equal value can be
	 * found in the array (if value is a plain object, the array must
	 * contain an object of the same shape), or -1 if it is not present.
	 */
	function looseIndexOf (arr, val) {
	  for (var i = 0; i < arr.length; i++) {
		if (looseEqual(arr[i], val)) { return i }
	  }
	  return -1
	}
  
	/**
	 * Ensure a function is called only once.
	 */
	function once (fn) {
	  var called = false;
	  return function () {
		if (!called) {
		  called = true;
		  fn.apply(this, arguments);
		}
	  }
	}
  
	var SSR_ATTR = 'data-server-rendered';
  
	var ASSET_TYPES = [
	  'component',
	  'directive',
	  'filter'
	];
  
	var LIFECYCLE_HOOKS = [
	  'beforeCreate',
	  'created',
	  'beforeMount',
	  'mounted',
	  'beforeUpdate',
	  'updated',
	  'beforeDestroy',
	  'destroyed',
	  'activated',
	  'deactivated',
	  'errorCaptured',
	  'serverPrefetch'
	];
  
	/*  */
  
  
  
	var config = ({
	  /**
	   * Option merge strategies (used in core/util/options)
	   */
	  // $flow-disable-line
	  optionMergeStrategies: Object.create(null),
  
	  /**
	   * Whether to suppress warnings.
	   */
	  silent: false,
  
	  /**
	   * Show production mode tip message on boot?
	   */
	  productionTip: "development" !== 'production',
  
	  /**
	   * Whether to enable devtools
	   */
	  devtools: "development" !== 'production',
  
	  /**
	   * Whether to record perf
	   */
	  performance: false,
  
	  /**
	   * Error handler for watcher errors
	   */
	  errorHandler: null,
  
	  /**
	   * Warn handler for watcher warns
	   */
	  warnHandler: null,
  
	  /**
	   * Ignore certain custom elements
	   */
	  ignoredElements: [],
  
	  /**
	   * Custom user key aliases for v-on
	   */
	  // $flow-disable-line
	  keyCodes: Object.create(null),
  
	  /**
	   * Check if a tag is reserved so that it cannot be registered as a
	   * component. This is platform-dependent and may be overwritten.
	   */
	  isReservedTag: no,
  
	  /**
	   * Check if an attribute is reserved so that it cannot be used as a component
	   * prop. This is platform-dependent and may be overwritten.
	   */
	  isReservedAttr: no,
  
	  /**
	   * Check if a tag is an unknown element.
	   * Platform-dependent.
	   */
	  isUnknownElement: no,
  
	  /**
	   * Get the namespace of an element
	   */
	  getTagNamespace: noop,
  
	  /**
	   * Parse the real tag name for the specific platform.
	   */
	  parsePlatformTagName: identity,
  
	  /**
	   * Check if an attribute must be bound using property, e.g. value
	   * Platform-dependent.
	   */
	  mustUseProp: no,
  
	  /**
	   * Perform updates asynchronously. Intended to be used by Vue Test Utils
	   * This will significantly reduce performance if set to false.
	   */
	  async: true,
  
	  /**
	   * Exposed for legacy reasons
	   */
	  _lifecycleHooks: LIFECYCLE_HOOKS
	});
  
	/*  */
  
	/**
	 * unicode letters used for parsing html tags, component names and property paths.
	 * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
	 * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
	 */
	var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
  
	/**
	 * Check if a string starts with $ or _
	 */
	function isReserved (str) {
	  var c = (str + '').charCodeAt(0);
	  return c === 0x24 || c === 0x5F
	}
  
	/**
	 * Define a property.
	 */
	function def (obj, key, val, enumerable) {
	  Object.defineProperty(obj, key, {
		value: val,
		enumerable: !!enumerable,
		writable: true,
		configurable: true
	  });
	}
  
	/**
	 * Parse simple path.
	 */
	var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
	function parsePath (path) {
	  if (bailRE.test(path)) {
		return
	  }
	  var segments = path.split('.');
	  return function (obj) {
		for (var i = 0; i < segments.length; i++) {
		  if (!obj) { return }
		  obj = obj[segments[i]];
		}
		return obj
	  }
	}
  
	/*  */
  
	// can we use __proto__?
	var hasProto = '__proto__' in {};
  
	// Browser environment sniffing
	var inBrowser = typeof window !== 'undefined';
	var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
	var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
	var UA = inBrowser && window.navigator.userAgent.toLowerCase();
	var isIE = UA && /msie|trident/.test(UA);
	var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
	var isEdge = UA && UA.indexOf('edge/') > 0;
	var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
	var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
	var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
	var isPhantomJS = UA && /phantomjs/.test(UA);
	var isFF = UA && UA.match(/firefox\/(\d+)/);
  
	// Firefox has a "watch" function on Object.prototype...
	var nativeWatch = ({}).watch;
  
	var supportsPassive = false;
	if (inBrowser) {
	  try {
		var opts = {};
		Object.defineProperty(opts, 'passive', ({
		  get: function get () {
			/* istanbul ignore next */
			supportsPassive = true;
		  }
		})); // https://github.com/facebook/flow/issues/285
		window.addEventListener('test-passive', null, opts);
	  } catch (e) {}
	}
  
	// this needs to be lazy-evaled because vue may be required before
	// vue-server-renderer can set VUE_ENV
	var _isServer;
	var isServerRendering = function () {
	  if (_isServer === undefined) {
		/* istanbul ignore if */
		if (!inBrowser && !inWeex && typeof global !== 'undefined') {
		  // detect presence of vue-server-renderer and avoid
		  // Webpack shimming the process
		  _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
		} else {
		  _isServer = false;
		}
	  }
	  return _isServer
	};
  
	// detect devtools
	var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
  
	/* istanbul ignore next */
	function isNative (Ctor) {
	  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
	}
  
	var hasSymbol =
	  typeof Symbol !== 'undefined' && isNative(Symbol) &&
	  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
  
	var _Set;
	/* istanbul ignore if */ // $flow-disable-line
	if (typeof Set !== 'undefined' && isNative(Set)) {
	  // use native Set when available.
	  _Set = Set;
	} else {
	  // a non-standard Set polyfill that only works with primitive keys.
	  _Set = /*@__PURE__*/(function () {
		function Set () {
		  this.set = Object.create(null);
		}
		Set.prototype.has = function has (key) {
		  return this.set[key] === true
		};
		Set.prototype.add = function add (key) {
		  this.set[key] = true;
		};
		Set.prototype.clear = function clear () {
		  this.set = Object.create(null);
		};
  
		return Set;
	  }());
	}
  
	/*  */
  
	var warn = noop;
	var tip = noop;
	var generateComponentTrace = (noop); // work around flow check
	var formatComponentName = (noop);
  
	{
	  var hasConsole = typeof console !== 'undefined';
	  var classifyRE = /(?:^|[-_])(\w)/g;
	  var classify = function (str) { return str
		.replace(classifyRE, function (c) { return c.toUpperCase(); })
		.replace(/[-_]/g, ''); };
  
	  warn = function (msg, vm) {
		var trace = vm ? generateComponentTrace(vm) : '';
  
		if (config.warnHandler) {
		  config.warnHandler.call(null, msg, vm, trace);
		} else if (hasConsole && (!config.silent)) {
		  console.error(("[Vue warn]: " + msg + trace));
		}
	  };
  
	  tip = function (msg, vm) {
		if (hasConsole && (!config.silent)) {
		  console.warn("[Vue tip]: " + msg + (
			vm ? generateComponentTrace(vm) : ''
		  ));
		}
	  };
  
	  formatComponentName = function (vm, includeFile) {
		if (vm.$root === vm) {
		  return '<Root>'
		}
		var options = typeof vm === 'function' && vm.cid != null
		  ? vm.options
		  : vm._isVue
			? vm.$options || vm.constructor.options
			: vm;
		var name = options.name || options._componentTag;
		var file = options.__file;
		if (!name && file) {
		  var match = file.match(/([^/\\]+)\.vue$/);
		  name = match && match[1];
		}
  
		return (
		  (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
		  (file && includeFile !== false ? (" at " + file) : '')
		)
	  };
  
	  var repeat = function (str, n) {
		var res = '';
		while (n) {
		  if (n % 2 === 1) { res += str; }
		  if (n > 1) { str += str; }
		  n >>= 1;
		}
		return res
	  };
  
	  generateComponentTrace = function (vm) {
		if (vm._isVue && vm.$parent) {
		  var tree = [];
		  var currentRecursiveSequence = 0;
		  while (vm) {
			if (tree.length > 0) {
			  var last = tree[tree.length - 1];
			  if (last.constructor === vm.constructor) {
				currentRecursiveSequence++;
				vm = vm.$parent;
				continue
			  } else if (currentRecursiveSequence > 0) {
				tree[tree.length - 1] = [last, currentRecursiveSequence];
				currentRecursiveSequence = 0;
			  }
			}
			tree.push(vm);
			vm = vm.$parent;
		  }
		  return '\n\nfound in\n\n' + tree
			.map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
				? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
				: formatComponentName(vm))); })
			.join('\n')
		} else {
		  return ("\n\n(found in " + (formatComponentName(vm)) + ")")
		}
	  };
	}
  
	/*  */
  
	var uid = 0;
  
	/**
	 * A dep is an observable that can have multiple
	 * directives subscribing to it.
	 */
	var Dep = function Dep () {
	  this.id = uid++;
	  this.subs = [];
	};
  
	Dep.prototype.addSub = function addSub (sub) {
	  this.subs.push(sub);
	};
  
	Dep.prototype.removeSub = function removeSub (sub) {
	  remove(this.subs, sub);
	};
  
	Dep.prototype.depend = function depend () {
	  if (Dep.target) {
		Dep.target.addDep(this);
	  }
	};
  
	Dep.prototype.notify = function notify () {
	  // stabilize the subscriber list first
	  var subs = this.subs.slice();
	  if (!config.async) {
		// subs aren't sorted in scheduler if not running async
		// we need to sort them now to make sure they fire in correct
		// order
		subs.sort(function (a, b) { return a.id - b.id; });
	  }
	  for (var i = 0, l = subs.length; i < l; i++) {
		subs[i].update();
	  }
	};
  
	// The current target watcher being evaluated.
	// This is globally unique because only one watcher
	// can be evaluated at a time.
	Dep.target = null;
	var targetStack = [];
  
	function pushTarget (target) {
	  targetStack.push(target);
	  Dep.target = target;
	}
  
	function popTarget () {
	  targetStack.pop();
	  Dep.target = targetStack[targetStack.length - 1];
	}
  
	/*  */
  
	var VNode = function VNode (
	  tag,
	  data,
	  children,
	  text,
	  elm,
	  context,
	  componentOptions,
	  asyncFactory
	) {
	  this.tag = tag;
	  this.data = data;
	  this.children = children;
	  this.text = text;
	  this.elm = elm;
	  this.ns = undefined;
	  this.context = context;
	  this.fnContext = undefined;
	  this.fnOptions = undefined;
	  this.fnScopeId = undefined;
	  this.key = data && data.key;
	  this.componentOptions = componentOptions;
	  this.componentInstance = undefined;
	  this.parent = undefined;
	  this.raw = false;
	  this.isStatic = false;
	  this.isRootInsert = true;
	  this.isComment = false;
	  this.isCloned = false;
	  this.isOnce = false;
	  this.asyncFactory = asyncFactory;
	  this.asyncMeta = undefined;
	  this.isAsyncPlaceholder = false;
	};
  
	var prototypeAccessors = { child: { configurable: true } };
  
	// DEPRECATED: alias for componentInstance for backwards compat.
	/* istanbul ignore next */
	prototypeAccessors.child.get = function () {
	  return this.componentInstance
	};
  
	Object.defineProperties( VNode.prototype, prototypeAccessors );
  
	var createEmptyVNode = function (text) {
	  if ( text === void 0 ) text = '';
  
	  var node = new VNode();
	  node.text = text;
	  node.isComment = true;
	  return node
	};
  
	function createTextVNode (val) {
	  return new VNode(undefined, undefined, undefined, String(val))
	}
  
	// optimized shallow clone
	// used for static nodes and slot nodes because they may be reused across
	// multiple renders, cloning them avoids errors when DOM manipulations rely
	// on their elm reference.
	function cloneVNode (vnode) {
	  var cloned = new VNode(
		vnode.tag,
		vnode.data,
		// #7975
		// clone children array to avoid mutating original in case of cloning
		// a child.
		vnode.children && vnode.children.slice(),
		vnode.text,
		vnode.elm,
		vnode.context,
		vnode.componentOptions,
		vnode.asyncFactory
	  );
	  cloned.ns = vnode.ns;
	  cloned.isStatic = vnode.isStatic;
	  cloned.key = vnode.key;
	  cloned.isComment = vnode.isComment;
	  cloned.fnContext = vnode.fnContext;
	  cloned.fnOptions = vnode.fnOptions;
	  cloned.fnScopeId = vnode.fnScopeId;
	  cloned.asyncMeta = vnode.asyncMeta;
	  cloned.isCloned = true;
	  return cloned
	}
  
	/*
	 * not type checking this file because flow doesn't play well with
	 * dynamically accessing methods on Array prototype
	 */
  
	var arrayProto = Array.prototype;
	var arrayMethods = Object.create(arrayProto);
  
	var methodsToPatch = [
	  'push',
	  'pop',
	  'shift',
	  'unshift',
	  'splice',
	  'sort',
	  'reverse'
	];
  
	/**
	 * Intercept mutating methods and emit events
	 */
	methodsToPatch.forEach(function (method) {
	  // cache original method
	  var original = arrayProto[method];
	  def(arrayMethods, method, function mutator () {
		var args = [], len = arguments.length;
		while ( len-- ) args[ len ] = arguments[ len ];
  
		var result = original.apply(this, args);
		var ob = this.__ob__;
		var inserted;
		switch (method) {
		  case 'push':
		  case 'unshift':
			inserted = args;
			break
		  case 'splice':
			inserted = args.slice(2);
			break
		}
		if (inserted) { ob.observeArray(inserted); }
		// notify change
		ob.dep.notify();
		return result
	  });
	});
  
	/*  */
  
	var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
  
	/**
	 * In some cases we may want to disable observation inside a component's
	 * update computation.
	 */
	var shouldObserve = true;
  
	function toggleObserving (value) {
	  shouldObserve = value;
	}
  
	/**
	 * Observer class that is attached to each observed
	 * object. Once attached, the observer converts the target
	 * object's property keys into getter/setters that
	 * collect dependencies and dispatch updates.
	 */
	var Observer = function Observer (value) {
	  this.value = value;
	  this.dep = new Dep();
	  this.vmCount = 0;
	  def(value, '__ob__', this);
	  if (Array.isArray(value)) {
		if (hasProto) {
		  protoAugment(value, arrayMethods);
		} else {
		  copyAugment(value, arrayMethods, arrayKeys);
		}
		this.observeArray(value);
	  } else {
		this.walk(value);
	  }
	};
  
	/**
	 * Walk through all properties and convert them into
	 * getter/setters. This method should only be called when
	 * value type is Object.
	 */
	Observer.prototype.walk = function walk (obj) {
	  var keys = Object.keys(obj);
	  for (var i = 0; i < keys.length; i++) {
		defineReactive$$1(obj, keys[i]);
	  }
	};
  
	/**
	 * Observe a list of Array items.
	 */
	Observer.prototype.observeArray = function observeArray (items) {
	  for (var i = 0, l = items.length; i < l; i++) {
		observe(items[i]);
	  }
	};
  
	// helpers
  
	/**
	 * Augment a target Object or Array by intercepting
	 * the prototype chain using __proto__
	 */
	function protoAugment (target, src) {
	  /* eslint-disable no-proto */
	  target.__proto__ = src;
	  /* eslint-enable no-proto */
	}
  
	/**
	 * Augment a target Object or Array by defining
	 * hidden properties.
	 */
	/* istanbul ignore next */
	function copyAugment (target, src, keys) {
	  for (var i = 0, l = keys.length; i < l; i++) {
		var key = keys[i];
		def(target, key, src[key]);
	  }
	}
  
	/**
	 * Attempt to create an observer instance for a value,
	 * returns the new observer if successfully observed,
	 * or the existing observer if the value already has one.
	 */
	function observe (value, asRootData) {
	  if (!isObject(value) || value instanceof VNode) {
		return
	  }
	  var ob;
	  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
		ob = value.__ob__;
	  } else if (
		shouldObserve &&
		!isServerRendering() &&
		(Array.isArray(value) || isPlainObject(value)) &&
		Object.isExtensible(value) &&
		!value._isVue
	  ) {
		ob = new Observer(value);
	  }
	  if (asRootData && ob) {
		ob.vmCount++;
	  }
	  return ob
	}
  
	/**
	 * Define a reactive property on an Object.
	 */
	function defineReactive$$1 (
	  obj,
	  key,
	  val,
	  customSetter,
	  shallow
	) {
	  var dep = new Dep();
  
	  var property = Object.getOwnPropertyDescriptor(obj, key);
	  if (property && property.configurable === false) {
		return
	  }
  
	  // cater for pre-defined getter/setters
	  var getter = property && property.get;
	  var setter = property && property.set;
	  if ((!getter || setter) && arguments.length === 2) {
		val = obj[key];
	  }
  
	  var childOb = !shallow && observe(val);
	  Object.defineProperty(obj, key, {
		enumerable: true,
		configurable: true,
		get: function reactiveGetter () {
		  var value = getter ? getter.call(obj) : val;
		  if (Dep.target) {
			dep.depend();
			if (childOb) {
			  childOb.dep.depend();
			  if (Array.isArray(value)) {
				dependArray(value);
			  }
			}
		  }
		  return value
		},
		set: function reactiveSetter (newVal) {
		  var value = getter ? getter.call(obj) : val;
		  /* eslint-disable no-self-compare */
		  if (newVal === value || (newVal !== newVal && value !== value)) {
			return
		  }
		  /* eslint-enable no-self-compare */
		  if (customSetter) {
			customSetter();
		  }
		  // #7981: for accessor properties without setter
		  if (getter && !setter) { return }
		  if (setter) {
			setter.call(obj, newVal);
		  } else {
			val = newVal;
		  }
		  childOb = !shallow && observe(newVal);
		  dep.notify();
		}
	  });
	}
  
	/**
	 * Set a property on an object. Adds the new property and
	 * triggers change notification if the property doesn't
	 * already exist.
	 */
	function set (target, key, val) {
	  if (isUndef(target) || isPrimitive(target)
	  ) {
		warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
	  }
	  if (Array.isArray(target) && isValidArrayIndex(key)) {
		target.length = Math.max(target.length, key);
		target.splice(key, 1, val);
		return val
	  }
	  if (key in target && !(key in Object.prototype)) {
		target[key] = val;
		return val
	  }
	  var ob = (target).__ob__;
	  if (target._isVue || (ob && ob.vmCount)) {
		warn(
		  'Avoid adding reactive properties to a Vue instance or its root $data ' +
		  'at runtime - declare it upfront in the data option.'
		);
		return val
	  }
	  if (!ob) {
		target[key] = val;
		return val
	  }
	  defineReactive$$1(ob.value, key, val);
	  ob.dep.notify();
	  return val
	}
  
	/**
	 * Delete a property and trigger change if necessary.
	 */
	function del (target, key) {
	  if (isUndef(target) || isPrimitive(target)
	  ) {
		warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
	  }
	  if (Array.isArray(target) && isValidArrayIndex(key)) {
		target.splice(key, 1);
		return
	  }
	  var ob = (target).__ob__;
	  if (target._isVue || (ob && ob.vmCount)) {
		warn(
		  'Avoid deleting properties on a Vue instance or its root $data ' +
		  '- just set it to null.'
		);
		return
	  }
	  if (!hasOwn(target, key)) {
		return
	  }
	  delete target[key];
	  if (!ob) {
		return
	  }
	  ob.dep.notify();
	}
  
	/**
	 * Collect dependencies on array elements when the array is touched, since
	 * we cannot intercept array element access like property getters.
	 */
	function dependArray (value) {
	  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
		e = value[i];
		e && e.__ob__ && e.__ob__.dep.depend();
		if (Array.isArray(e)) {
		  dependArray(e);
		}
	  }
	}
  
	/*  */
  
	/**
	 * Option overwriting strategies are functions that handle
	 * how to merge a parent option value and a child option
	 * value into the final value.
	 */
	var strats = config.optionMergeStrategies;
  
	/**
	 * Options with restrictions
	 */
	{
	  strats.el = strats.propsData = function (parent, child, vm, key) {
		if (!vm) {
		  warn(
			"option \"" + key + "\" can only be used during instance " +
			'creation with the `new` keyword.'
		  );
		}
		return defaultStrat(parent, child)
	  };
	}
  
	/**
	 * Helper that recursively merges two data objects together.
	 */
	function mergeData (to, from) {
	  if (!from) { return to }
	  var key, toVal, fromVal;
  
	  var keys = hasSymbol
		? Reflect.ownKeys(from)
		: Object.keys(from);
  
	  for (var i = 0; i < keys.length; i++) {
		key = keys[i];
		// in case the object is already observed...
		if (key === '__ob__') { continue }
		toVal = to[key];
		fromVal = from[key];
		if (!hasOwn(to, key)) {
		  set(to, key, fromVal);
		} else if (
		  toVal !== fromVal &&
		  isPlainObject(toVal) &&
		  isPlainObject(fromVal)
		) {
		  mergeData(toVal, fromVal);
		}
	  }
	  return to
	}
  
	/**
	 * Data
	 */
	function mergeDataOrFn (
	  parentVal,
	  childVal,
	  vm
	) {
	  if (!vm) {
		// in a Vue.extend merge, both should be functions
		if (!childVal) {
		  return parentVal
		}
		if (!parentVal) {
		  return childVal
		}
		// when parentVal & childVal are both present,
		// we need to return a function that returns the
		// merged result of both functions... no need to
		// check if parentVal is a function here because
		// it has to be a function to pass previous merges.
		return function mergedDataFn () {
		  return mergeData(
			typeof childVal === 'function' ? childVal.call(this, this) : childVal,
			typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
		  )
		}
	  } else {
		return function mergedInstanceDataFn () {
		  // instance merge
		  var instanceData = typeof childVal === 'function'
			? childVal.call(vm, vm)
			: childVal;
		  var defaultData = typeof parentVal === 'function'
			? parentVal.call(vm, vm)
			: parentVal;
		  if (instanceData) {
			return mergeData(instanceData, defaultData)
		  } else {
			return defaultData
		  }
		}
	  }
	}
  
	strats.data = function (
	  parentVal,
	  childVal,
	  vm
	) {
	  if (!vm) {
		if (childVal && typeof childVal !== 'function') {
		  warn(
			'The "data" option should be a function ' +
			'that returns a per-instance value in component ' +
			'definitions.',
			vm
		  );
  
		  return parentVal
		}
		return mergeDataOrFn(parentVal, childVal)
	  }
  
	  return mergeDataOrFn(parentVal, childVal, vm)
	};
  
	/**
	 * Hooks and props are merged as arrays.
	 */
	function mergeHook (
	  parentVal,
	  childVal
	) {
	  var res = childVal
		? parentVal
		  ? parentVal.concat(childVal)
		  : Array.isArray(childVal)
			? childVal
			: [childVal]
		: parentVal;
	  return res
		? dedupeHooks(res)
		: res
	}
  
	function dedupeHooks (hooks) {
	  var res = [];
	  for (var i = 0; i < hooks.length; i++) {
		if (res.indexOf(hooks[i]) === -1) {
		  res.push(hooks[i]);
		}
	  }
	  return res
	}
  
	LIFECYCLE_HOOKS.forEach(function (hook) {
	  strats[hook] = mergeHook;
	});
  
	/**
	 * Assets
	 *
	 * When a vm is present (instance creation), we need to do
	 * a three-way merge between constructor options, instance
	 * options and parent options.
	 */
	function mergeAssets (
	  parentVal,
	  childVal,
	  vm,
	  key
	) {
	  var res = Object.create(parentVal || null);
	  if (childVal) {
		assertObjectType(key, childVal, vm);
		return extend(res, childVal)
	  } else {
		return res
	  }
	}
  
	ASSET_TYPES.forEach(function (type) {
	  strats[type + 's'] = mergeAssets;
	});
  
	/**
	 * Watchers.
	 *
	 * Watchers hashes should not overwrite one
	 * another, so we merge them as arrays.
	 */
	strats.watch = function (
	  parentVal,
	  childVal,
	  vm,
	  key
	) {
	  // work around Firefox's Object.prototype.watch...
	  if (parentVal === nativeWatch) { parentVal = undefined; }
	  if (childVal === nativeWatch) { childVal = undefined; }
	  /* istanbul ignore if */
	  if (!childVal) { return Object.create(parentVal || null) }
	  {
		assertObjectType(key, childVal, vm);
	  }
	  if (!parentVal) { return childVal }
	  var ret = {};
	  extend(ret, parentVal);
	  for (var key$1 in childVal) {
		var parent = ret[key$1];
		var child = childVal[key$1];
		if (parent && !Array.isArray(parent)) {
		  parent = [parent];
		}
		ret[key$1] = parent
		  ? parent.concat(child)
		  : Array.isArray(child) ? child : [child];
	  }
	  return ret
	};
  
	/**
	 * Other object hashes.
	 */
	strats.props =
	strats.methods =
	strats.inject =
	strats.computed = function (
	  parentVal,
	  childVal,
	  vm,
	  key
	) {
	  if (childVal && "development" !== 'production') {
		assertObjectType(key, childVal, vm);
	  }
	  if (!parentVal) { return childVal }
	  var ret = Object.create(null);
	  extend(ret, parentVal);
	  if (childVal) { extend(ret, childVal); }
	  return ret
	};
	strats.provide = mergeDataOrFn;
  
	/**
	 * Default strategy.
	 */
	var defaultStrat = function (parentVal, childVal) {
	  return childVal === undefined
		? parentVal
		: childVal
	};
  
	/**
	 * Validate component names
	 */
	function checkComponents (options) {
	  for (var key in options.components) {
		validateComponentName(key);
	  }
	}
  
	function validateComponentName (name) {
	  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
		warn(
		  'Invalid component name: "' + name + '". Component names ' +
		  'should conform to valid custom element name in html5 specification.'
		);
	  }
	  if (isBuiltInTag(name) || config.isReservedTag(name)) {
		warn(
		  'Do not use built-in or reserved HTML elements as component ' +
		  'id: ' + name
		);
	  }
	}
  
	/**
	 * Ensure all props option syntax are normalized into the
	 * Object-based format.
	 */
	function normalizeProps (options, vm) {
	  var props = options.props;
	  if (!props) { return }
	  var res = {};
	  var i, val, name;
	  if (Array.isArray(props)) {
		i = props.length;
		while (i--) {
		  val = props[i];
		  if (typeof val === 'string') {
			name = camelize(val);
			res[name] = { type: null };
		  } else {
			warn('props must be strings when using array syntax.');
		  }
		}
	  } else if (isPlainObject(props)) {
		for (var key in props) {
		  val = props[key];
		  name = camelize(key);
		  res[name] = isPlainObject(val)
			? val
			: { type: val };
		}
	  } else {
		warn(
		  "Invalid value for option \"props\": expected an Array or an Object, " +
		  "but got " + (toRawType(props)) + ".",
		  vm
		);
	  }
	  options.props = res;
	}
  
	/**
	 * Normalize all injections into Object-based format
	 */
	function normalizeInject (options, vm) {
	  var inject = options.inject;
	  if (!inject) { return }
	  var normalized = options.inject = {};
	  if (Array.isArray(inject)) {
		for (var i = 0; i < inject.length; i++) {
		  normalized[inject[i]] = { from: inject[i] };
		}
	  } else if (isPlainObject(inject)) {
		for (var key in inject) {
		  var val = inject[key];
		  normalized[key] = isPlainObject(val)
			? extend({ from: key }, val)
			: { from: val };
		}
	  } else {
		warn(
		  "Invalid value for option \"inject\": expected an Array or an Object, " +
		  "but got " + (toRawType(inject)) + ".",
		  vm
		);
	  }
	}
  
	/**
	 * Normalize raw function directives into object format.
	 */
	function normalizeDirectives (options) {
	  var dirs = options.directives;
	  if (dirs) {
		for (var key in dirs) {
		  var def$$1 = dirs[key];
		  if (typeof def$$1 === 'function') {
			dirs[key] = { bind: def$$1, update: def$$1 };
		  }
		}
	  }
	}
  
	function assertObjectType (name, value, vm) {
	  if (!isPlainObject(value)) {
		warn(
		  "Invalid value for option \"" + name + "\": expected an Object, " +
		  "but got " + (toRawType(value)) + ".",
		  vm
		);
	  }
	}
  
	/**
	 * Merge two option objects into a new one.
	 * Core utility used in both instantiation and inheritance.
	 */
	function mergeOptions (
	  parent,
	  child,
	  vm
	) {
	  {
		checkComponents(child);
	  }
  
	  if (typeof child === 'function') {
		child = child.options;
	  }
  
	  normalizeProps(child, vm);
	  normalizeInject(child, vm);
	  normalizeDirectives(child);
  
	  // Apply extends and mixins on the child options,
	  // but only if it is a raw options object that isn't
	  // the result of another mergeOptions call.
	  // Only merged options has the _base property.
	  if (!child._base) {
		if (child.extends) {
		  parent = mergeOptions(parent, child.extends, vm);
		}
		if (child.mixins) {
		  for (var i = 0, l = child.mixins.length; i < l; i++) {
			parent = mergeOptions(parent, child.mixins[i], vm);
		  }
		}
	  }
  
	  var options = {};
	  var key;
	  for (key in parent) {
		mergeField(key);
	  }
	  for (key in child) {
		if (!hasOwn(parent, key)) {
		  mergeField(key);
		}
	  }
	  function mergeField (key) {
		var strat = strats[key] || defaultStrat;
		options[key] = strat(parent[key], child[key], vm, key);
	  }
	  return options
	}
  
	/**
	 * Resolve an asset.
	 * This function is used because child instances need access
	 * to assets defined in its ancestor chain.
	 */
	function resolveAsset (
	  options,
	  type,
	  id,
	  warnMissing
	) {
	  /* istanbul ignore if */
	  if (typeof id !== 'string') {
		return
	  }
	  var assets = options[type];
	  // check local registration variations first
	  if (hasOwn(assets, id)) { return assets[id] }
	  var camelizedId = camelize(id);
	  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
	  var PascalCaseId = capitalize(camelizedId);
	  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
	  // fallback to prototype chain
	  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
	  if (warnMissing && !res) {
		warn(
		  'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
		  options
		);
	  }
	  return res
	}
  
	/*  */
  
  
  
	function validateProp (
	  key,
	  propOptions,
	  propsData,
	  vm
	) {
	  var prop = propOptions[key];
	  var absent = !hasOwn(propsData, key);
	  var value = propsData[key];
	  // boolean casting
	  var booleanIndex = getTypeIndex(Boolean, prop.type);
	  if (booleanIndex > -1) {
		if (absent && !hasOwn(prop, 'default')) {
		  value = false;
		} else if (value === '' || value === hyphenate(key)) {
		  // only cast empty string / same name to boolean if
		  // boolean has higher priority
		  var stringIndex = getTypeIndex(String, prop.type);
		  if (stringIndex < 0 || booleanIndex < stringIndex) {
			value = true;
		  }
		}
	  }
	  // check default value
	  if (value === undefined) {
		value = getPropDefaultValue(vm, prop, key);
		// since the default value is a fresh copy,
		// make sure to observe it.
		var prevShouldObserve = shouldObserve;
		toggleObserving(true);
		observe(value);
		toggleObserving(prevShouldObserve);
	  }
	  {
		assertProp(prop, key, value, vm, absent);
	  }
	  return value
	}
  
	/**
	 * Get the default value of a prop.
	 */
	function getPropDefaultValue (vm, prop, key) {
	  // no default, return undefined
	  if (!hasOwn(prop, 'default')) {
		return undefined
	  }
	  var def = prop.default;
	  // warn against non-factory defaults for Object & Array
	  if (isObject(def)) {
		warn(
		  'Invalid default value for prop "' + key + '": ' +
		  'Props with type Object/Array must use a factory function ' +
		  'to return the default value.',
		  vm
		);
	  }
	  // the raw prop value was also undefined from previous render,
	  // return previous default value to avoid unnecessary watcher trigger
	  if (vm && vm.$options.propsData &&
		vm.$options.propsData[key] === undefined &&
		vm._props[key] !== undefined
	  ) {
		return vm._props[key]
	  }
	  // call factory function for non-Function types
	  // a value is Function if its prototype is function even across different execution context
	  return typeof def === 'function' && getType(prop.type) !== 'Function'
		? def.call(vm)
		: def
	}
  
	/**
	 * Assert whether a prop is valid.
	 */
	function assertProp (
	  prop,
	  name,
	  value,
	  vm,
	  absent
	) {
	  if (prop.required && absent) {
		warn(
		  'Missing required prop: "' + name + '"',
		  vm
		);
		return
	  }
	  if (value == null && !prop.required) {
		return
	  }
	  var type = prop.type;
	  var valid = !type || type === true;
	  var expectedTypes = [];
	  if (type) {
		if (!Array.isArray(type)) {
		  type = [type];
		}
		for (var i = 0; i < type.length && !valid; i++) {
		  var assertedType = assertType(value, type[i], vm);
		  expectedTypes.push(assertedType.expectedType || '');
		  valid = assertedType.valid;
		}
	  }
  
	  var haveExpectedTypes = expectedTypes.some(function (t) { return t; });
	  if (!valid && haveExpectedTypes) {
		warn(
		  getInvalidTypeMessage(name, value, expectedTypes),
		  vm
		);
		return
	  }
	  var validator = prop.validator;
	  if (validator) {
		if (!validator(value)) {
		  warn(
			'Invalid prop: custom validator check failed for prop "' + name + '".',
			vm
		  );
		}
	  }
	}
  
	var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol|BigInt)$/;
  
	function assertType (value, type, vm) {
	  var valid;
	  var expectedType = getType(type);
	  if (simpleCheckRE.test(expectedType)) {
		var t = typeof value;
		valid = t === expectedType.toLowerCase();
		// for primitive wrapper objects
		if (!valid && t === 'object') {
		  valid = value instanceof type;
		}
	  } else if (expectedType === 'Object') {
		valid = isPlainObject(value);
	  } else if (expectedType === 'Array') {
		valid = Array.isArray(value);
	  } else {
		try {
		  valid = value instanceof type;
		} catch (e) {
		  warn('Invalid prop type: "' + String(type) + '" is not a constructor', vm);
		  valid = false;
		}
	  }
	  return {
		valid: valid,
		expectedType: expectedType
	  }
	}
  
	var functionTypeCheckRE = /^\s*function (\w+)/;
  
	/**
	 * Use function string name to check built-in types,
	 * because a simple equality check will fail when running
	 * across different vms / iframes.
	 */
	function getType (fn) {
	  var match = fn && fn.toString().match(functionTypeCheckRE);
	  return match ? match[1] : ''
	}
  
	function isSameType (a, b) {
	  return getType(a) === getType(b)
	}
  
	function getTypeIndex (type, expectedTypes) {
	  if (!Array.isArray(expectedTypes)) {
		return isSameType(expectedTypes, type) ? 0 : -1
	  }
	  for (var i = 0, len = expectedTypes.length; i < len; i++) {
		if (isSameType(expectedTypes[i], type)) {
		  return i
		}
	  }
	  return -1
	}
  
	function getInvalidTypeMessage (name, value, expectedTypes) {
	  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
		" Expected " + (expectedTypes.map(capitalize).join(', '));
	  var expectedType = expectedTypes[0];
	  var receivedType = toRawType(value);
	  // check if we need to specify expected value
	  if (
		expectedTypes.length === 1 &&
		isExplicable(expectedType) &&
		isExplicable(typeof value) &&
		!isBoolean(expectedType, receivedType)
	  ) {
		message += " with value " + (styleValue(value, expectedType));
	  }
	  message += ", got " + receivedType + " ";
	  // check if we need to specify received value
	  if (isExplicable(receivedType)) {
		message += "with value " + (styleValue(value, receivedType)) + ".";
	  }
	  return message
	}
  
	function styleValue (value, type) {
	  if (type === 'String') {
		return ("\"" + value + "\"")
	  } else if (type === 'Number') {
		return ("" + (Number(value)))
	  } else {
		return ("" + value)
	  }
	}
  
	var EXPLICABLE_TYPES = ['string', 'number', 'boolean'];
	function isExplicable (value) {
	  return EXPLICABLE_TYPES.some(function (elem) { return value.toLowerCase() === elem; })
	}
  
	function isBoolean () {
	  var args = [], len = arguments.length;
	  while ( len-- ) args[ len ] = arguments[ len ];
  
	  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
	}
  
	/*  */
  
	function handleError (err, vm, info) {
	  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
	  // See: https://github.com/vuejs/vuex/issues/1505
	  pushTarget();
	  try {
		if (vm) {
		  var cur = vm;
		  while ((cur = cur.$parent)) {
			var hooks = cur.$options.errorCaptured;
			if (hooks) {
			  for (var i = 0; i < hooks.length; i++) {
				try {
				  var capture = hooks[i].call(cur, err, vm, info) === false;
				  if (capture) { return }
				} catch (e) {
				  globalHandleError(e, cur, 'errorCaptured hook');
				}
			  }
			}
		  }
		}
		globalHandleError(err, vm, info);
	  } finally {
		popTarget();
	  }
	}
  
	function invokeWithErrorHandling (
	  handler,
	  context,
	  args,
	  vm,
	  info
	) {
	  var res;
	  try {
		res = args ? handler.apply(context, args) : handler.call(context);
		if (res && !res._isVue && isPromise(res) && !res._handled) {
		  res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
		  // issue #9511
		  // avoid catch triggering multiple times when nested calls
		  res._handled = true;
		}
	  } catch (e) {
		handleError(e, vm, info);
	  }
	  return res
	}
  
	function globalHandleError (err, vm, info) {
	  if (config.errorHandler) {
		try {
		  return config.errorHandler.call(null, err, vm, info)
		} catch (e) {
		  // if the user intentionally throws the original error in the handler,
		  // do not log it twice
		  if (e !== err) {
			logError(e, null, 'config.errorHandler');
		  }
		}
	  }
	  logError(err, vm, info);
	}
  
	function logError (err, vm, info) {
	  {
		warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
	  }
	  /* istanbul ignore else */
	  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
		console.error(err);
	  } else {
		throw err
	  }
	}
  
	/*  */
  
	var isUsingMicroTask = false;
  
	var callbacks = [];
	var pending = false;
  
	function flushCallbacks () {
	  pending = false;
	  var copies = callbacks.slice(0);
	  callbacks.length = 0;
	  for (var i = 0; i < copies.length; i++) {
		copies[i]();
	  }
	}
  
	// Here we have async deferring wrappers using microtasks.
	// In 2.5 we used (macro) tasks (in combination with microtasks).
	// However, it has subtle problems when state is changed right before repaint
	// (e.g. #6813, out-in transitions).
	// Also, using (macro) tasks in event handler would cause some weird behaviors
	// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
	// So we now use microtasks everywhere, again.
	// A major drawback of this tradeoff is that there are some scenarios
	// where microtasks have too high a priority and fire in between supposedly
	// sequential events (e.g. #4521, #6690, which have workarounds)
	// or even between bubbling of the same event (#6566).
	var timerFunc;
  
	// The nextTick behavior leverages the microtask queue, which can be accessed
	// via either native Promise.then or MutationObserver.
	// MutationObserver has wider support, however it is seriously bugged in
	// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
	// completely stops working after triggering a few times... so, if native
	// Promise is available, we will use it:
	/* istanbul ignore next, $flow-disable-line */
	if (typeof Promise !== 'undefined' && isNative(Promise)) {
	  var p = Promise.resolve();
	  timerFunc = function () {
		p.then(flushCallbacks);
		// In problematic UIWebViews, Promise.then doesn't completely break, but
		// it can get stuck in a weird state where callbacks are pushed into the
		// microtask queue but the queue isn't being flushed, until the browser
		// needs to do some other work, e.g. handle a timer. Therefore we can
		// "force" the microtask queue to be flushed by adding an empty timer.
		if (isIOS) { setTimeout(noop); }
	  };
	  isUsingMicroTask = true;
	} else if (!isIE && typeof MutationObserver !== 'undefined' && (
	  isNative(MutationObserver) ||
	  // PhantomJS and iOS 7.x
	  MutationObserver.toString() === '[object MutationObserverConstructor]'
	)) {
	  // Use MutationObserver where native Promise is not available,
	  // e.g. PhantomJS, iOS7, Android 4.4
	  // (#6466 MutationObserver is unreliable in IE11)
	  var counter = 1;
	  var observer = new MutationObserver(flushCallbacks);
	  var textNode = document.createTextNode(String(counter));
	  observer.observe(textNode, {
		characterData: true
	  });
	  timerFunc = function () {
		counter = (counter + 1) % 2;
		textNode.data = String(counter);
	  };
	  isUsingMicroTask = true;
	} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
	  // Fallback to setImmediate.
	  // Technically it leverages the (macro) task queue,
	  // but it is still a better choice than setTimeout.
	  timerFunc = function () {
		setImmediate(flushCallbacks);
	  };
	} else {
	  // Fallback to setTimeout.
	  timerFunc = function () {
		setTimeout(flushCallbacks, 0);
	  };
	}
  
	function nextTick (cb, ctx) {
	  var _resolve;
	  callbacks.push(function () {
		if (cb) {
		  try {
			cb.call(ctx);
		  } catch (e) {
			handleError(e, ctx, 'nextTick');
		  }
		} else if (_resolve) {
		  _resolve(ctx);
		}
	  });
	  if (!pending) {
		pending = true;
		timerFunc();
	  }
	  // $flow-disable-line
	  if (!cb && typeof Promise !== 'undefined') {
		return new Promise(function (resolve) {
		  _resolve = resolve;
		})
	  }
	}
  
	/*  */
  
	var mark;
	var measure;
  
	{
	  var perf = inBrowser && window.performance;
	  /* istanbul ignore if */
	  if (
		perf &&
		perf.mark &&
		perf.measure &&
		perf.clearMarks &&
		perf.clearMeasures
	  ) {
		mark = function (tag) { return perf.mark(tag); };
		measure = function (name, startTag, endTag) {
		  perf.measure(name, startTag, endTag);
		  perf.clearMarks(startTag);
		  perf.clearMarks(endTag);
		  // perf.clearMeasures(name)
		};
	  }
	}
  
	/* not type checking this file because flow doesn't play well with Proxy */
  
	var initProxy;
  
	{
	  var allowedGlobals = makeMap(
		'Infinity,undefined,NaN,isFinite,isNaN,' +
		'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
		'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,BigInt,' +
		'require' // for Webpack/Browserify
	  );
  
	  var warnNonPresent = function (target, key) {
		warn(
		  "Property or method \"" + key + "\" is not defined on the instance but " +
		  'referenced during render. Make sure that this property is reactive, ' +
		  'either in the data option, or for class-based components, by ' +
		  'initializing the property. ' +
		  'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
		  target
		);
	  };
  
	  var warnReservedPrefix = function (target, key) {
		warn(
		  "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
		  'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
		  'prevent conflicts with Vue internals. ' +
		  'See: https://vuejs.org/v2/api/#data',
		  target
		);
	  };
  
	  var hasProxy =
		typeof Proxy !== 'undefined' && isNative(Proxy);
  
	  if (hasProxy) {
		var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
		config.keyCodes = new Proxy(config.keyCodes, {
		  set: function set (target, key, value) {
			if (isBuiltInModifier(key)) {
			  warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
			  return false
			} else {
			  target[key] = value;
			  return true
			}
		  }
		});
	  }
  
	  var hasHandler = {
		has: function has (target, key) {
		  var has = key in target;
		  var isAllowed = allowedGlobals(key) ||
			(typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
		  if (!has && !isAllowed) {
			if (key in target.$data) { warnReservedPrefix(target, key); }
			else { warnNonPresent(target, key); }
		  }
		  return has || !isAllowed
		}
	  };
  
	  var getHandler = {
		get: function get (target, key) {
		  if (typeof key === 'string' && !(key in target)) {
			if (key in target.$data) { warnReservedPrefix(target, key); }
			else { warnNonPresent(target, key); }
		  }
		  return target[key]
		}
	  };
  
	  initProxy = function initProxy (vm) {
		if (hasProxy) {
		  // determine which proxy handler to use
		  var options = vm.$options;
		  var handlers = options.render && options.render._withStripped
			? getHandler
			: hasHandler;
		  vm._renderProxy = new Proxy(vm, handlers);
		} else {
		  vm._renderProxy = vm;
		}
	  };
	}
  
	/*  */
  
	var seenObjects = new _Set();
  
	/**
	 * Recursively traverse an object to evoke all converted
	 * getters, so that every nested property inside the object
	 * is collected as a "deep" dependency.
	 */
	function traverse (val) {
	  _traverse(val, seenObjects);
	  seenObjects.clear();
	}
  
	function _traverse (val, seen) {
	  var i, keys;
	  var isA = Array.isArray(val);
	  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
		return
	  }
	  if (val.__ob__) {
		var depId = val.__ob__.dep.id;
		if (seen.has(depId)) {
		  return
		}
		seen.add(depId);
	  }
	  if (isA) {
		i = val.length;
		while (i--) { _traverse(val[i], seen); }
	  } else {
		keys = Object.keys(val);
		i = keys.length;
		while (i--) { _traverse(val[keys[i]], seen); }
	  }
	}
  
	/*  */
  
	var normalizeEvent = cached(function (name) {
	  var passive = name.charAt(0) === '&';
	  name = passive ? name.slice(1) : name;
	  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
	  name = once$$1 ? name.slice(1) : name;
	  var capture = name.charAt(0) === '!';
	  name = capture ? name.slice(1) : name;
	  return {
		name: name,
		once: once$$1,
		capture: capture,
		passive: passive
	  }
	});
  
	function createFnInvoker (fns, vm) {
	  function invoker () {
		var arguments$1 = arguments;
  
		var fns = invoker.fns;
		if (Array.isArray(fns)) {
		  var cloned = fns.slice();
		  for (var i = 0; i < cloned.length; i++) {
			invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
		  }
		} else {
		  // return handler return value for single handlers
		  return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
		}
	  }
	  invoker.fns = fns;
	  return invoker
	}
  
	function updateListeners (
	  on,
	  oldOn,
	  add,
	  remove$$1,
	  createOnceHandler,
	  vm
	) {
	  var name, def$$1, cur, old, event;
	  for (name in on) {
		def$$1 = cur = on[name];
		old = oldOn[name];
		event = normalizeEvent(name);
		if (isUndef(cur)) {
		  warn(
			"Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
			vm
		  );
		} else if (isUndef(old)) {
		  if (isUndef(cur.fns)) {
			cur = on[name] = createFnInvoker(cur, vm);
		  }
		  if (isTrue(event.once)) {
			cur = on[name] = createOnceHandler(event.name, cur, event.capture);
		  }
		  add(event.name, cur, event.capture, event.passive, event.params);
		} else if (cur !== old) {
		  old.fns = cur;
		  on[name] = old;
		}
	  }
	  for (name in oldOn) {
		if (isUndef(on[name])) {
		  event = normalizeEvent(name);
		  remove$$1(event.name, oldOn[name], event.capture);
		}
	  }
	}
  
	/*  */
  
	function mergeVNodeHook (def, hookKey, hook) {
	  if (def instanceof VNode) {
		def = def.data.hook || (def.data.hook = {});
	  }
	  var invoker;
	  var oldHook = def[hookKey];
  
	  function wrappedHook () {
		hook.apply(this, arguments);
		// important: remove merged hook to ensure it's called only once
		// and prevent memory leak
		remove(invoker.fns, wrappedHook);
	  }
  
	  if (isUndef(oldHook)) {
		// no existing hook
		invoker = createFnInvoker([wrappedHook]);
	  } else {
		/* istanbul ignore if */
		if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
		  // already a merged invoker
		  invoker = oldHook;
		  invoker.fns.push(wrappedHook);
		} else {
		  // existing plain hook
		  invoker = createFnInvoker([oldHook, wrappedHook]);
		}
	  }
  
	  invoker.merged = true;
	  def[hookKey] = invoker;
	}
  
	/*  */
  
	function extractPropsFromVNodeData (
	  data,
	  Ctor,
	  tag
	) {
	  // we are only extracting raw values here.
	  // validation and default values are handled in the child
	  // component itself.
	  var propOptions = Ctor.options.props;
	  if (isUndef(propOptions)) {
		return
	  }
	  var res = {};
	  var attrs = data.attrs;
	  var props = data.props;
	  if (isDef(attrs) || isDef(props)) {
		for (var key in propOptions) {
		  var altKey = hyphenate(key);
		  {
			var keyInLowerCase = key.toLowerCase();
			if (
			  key !== keyInLowerCase &&
			  attrs && hasOwn(attrs, keyInLowerCase)
			) {
			  tip(
				"Prop \"" + keyInLowerCase + "\" is passed to component " +
				(formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
				" \"" + key + "\". " +
				"Note that HTML attributes are case-insensitive and camelCased " +
				"props need to use their kebab-case equivalents when using in-DOM " +
				"templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
			  );
			}
		  }
		  checkProp(res, props, key, altKey, true) ||
		  checkProp(res, attrs, key, altKey, false);
		}
	  }
	  return res
	}
  
	function checkProp (
	  res,
	  hash,
	  key,
	  altKey,
	  preserve
	) {
	  if (isDef(hash)) {
		if (hasOwn(hash, key)) {
		  res[key] = hash[key];
		  if (!preserve) {
			delete hash[key];
		  }
		  return true
		} else if (hasOwn(hash, altKey)) {
		  res[key] = hash[altKey];
		  if (!preserve) {
			delete hash[altKey];
		  }
		  return true
		}
	  }
	  return false
	}
  
	/*  */
  
	// The template compiler attempts to minimize the need for normalization by
	// statically analyzing the template at compile time.
	//
	// For plain HTML markup, normalization can be completely skipped because the
	// generated render function is guaranteed to return Array<VNode>. There are
	// two cases where extra normalization is needed:
  
	// 1. When the children contains components - because a functional component
	// may return an Array instead of a single root. In this case, just a simple
	// normalization is needed - if any child is an Array, we flatten the whole
	// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
	// because functional components already normalize their own children.
	function simpleNormalizeChildren (children) {
	  for (var i = 0; i < children.length; i++) {
		if (Array.isArray(children[i])) {
		  return Array.prototype.concat.apply([], children)
		}
	  }
	  return children
	}
  
	// 2. When the children contains constructs that always generated nested Arrays,
	// e.g. <template>, <slot>, v-for, or when the children is provided by user
	// with hand-written render functions / JSX. In such cases a full normalization
	// is needed to cater to all possible types of children values.
	function normalizeChildren (children) {
	  return isPrimitive(children)
		? [createTextVNode(children)]
		: Array.isArray(children)
		  ? normalizeArrayChildren(children)
		  : undefined
	}
  
	function isTextNode (node) {
	  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
	}
  
	function normalizeArrayChildren (children, nestedIndex) {
	  var res = [];
	  var i, c, lastIndex, last;
	  for (i = 0; i < children.length; i++) {
		c = children[i];
		if (isUndef(c) || typeof c === 'boolean') { continue }
		lastIndex = res.length - 1;
		last = res[lastIndex];
		//  nested
		if (Array.isArray(c)) {
		  if (c.length > 0) {
			c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
			// merge adjacent text nodes
			if (isTextNode(c[0]) && isTextNode(last)) {
			  res[lastIndex] = createTextVNode(last.text + (c[0]).text);
			  c.shift();
			}
			res.push.apply(res, c);
		  }
		} else if (isPrimitive(c)) {
		  if (isTextNode(last)) {
			// merge adjacent text nodes
			// this is necessary for SSR hydration because text nodes are
			// essentially merged when rendered to HTML strings
			res[lastIndex] = createTextVNode(last.text + c);
		  } else if (c !== '') {
			// convert primitive to vnode
			res.push(createTextVNode(c));
		  }
		} else {
		  if (isTextNode(c) && isTextNode(last)) {
			// merge adjacent text nodes
			res[lastIndex] = createTextVNode(last.text + c.text);
		  } else {
			// default key for nested array children (likely generated by v-for)
			if (isTrue(children._isVList) &&
			  isDef(c.tag) &&
			  isUndef(c.key) &&
			  isDef(nestedIndex)) {
			  c.key = "__vlist" + nestedIndex + "_" + i + "__";
			}
			res.push(c);
		  }
		}
	  }
	  return res
	}
  
	/*  */
  
	function initProvide (vm) {
	  var provide = vm.$options.provide;
	  if (provide) {
		vm._provided = typeof provide === 'function'
		  ? provide.call(vm)
		  : provide;
	  }
	}
  
	function initInjections (vm) {
	  var result = resolveInject(vm.$options.inject, vm);
	  if (result) {
		toggleObserving(false);
		Object.keys(result).forEach(function (key) {
		  /* istanbul ignore else */
		  {
			defineReactive$$1(vm, key, result[key], function () {
			  warn(
				"Avoid mutating an injected value directly since the changes will be " +
				"overwritten whenever the provided component re-renders. " +
				"injection being mutated: \"" + key + "\"",
				vm
			  );
			});
		  }
		});
		toggleObserving(true);
	  }
	}
  
	function resolveInject (inject, vm) {
	  if (inject) {
		// inject is :any because flow is not smart enough to figure out cached
		var result = Object.create(null);
		var keys = hasSymbol
		  ? Reflect.ownKeys(inject)
		  : Object.keys(inject);
  
		for (var i = 0; i < keys.length; i++) {
		  var key = keys[i];
		  // #6574 in case the inject object is observed...
		  if (key === '__ob__') { continue }
		  var provideKey = inject[key].from;
		  var source = vm;
		  while (source) {
			if (source._provided && hasOwn(source._provided, provideKey)) {
			  result[key] = source._provided[provideKey];
			  break
			}
			source = source.$parent;
		  }
		  if (!source) {
			if ('default' in inject[key]) {
			  var provideDefault = inject[key].default;
			  result[key] = typeof provideDefault === 'function'
				? provideDefault.call(vm)
				: provideDefault;
			} else {
			  warn(("Injection \"" + key + "\" not found"), vm);
			}
		  }
		}
		return result
	  }
	}
  
	/*  */
  
  
  
	/**
	 * Runtime helper for resolving raw children VNodes into a slot object.
	 */
	function resolveSlots (
	  children,
	  context
	) {
	  if (!children || !children.length) {
		return {}
	  }
	  var slots = {};
	  for (var i = 0, l = children.length; i < l; i++) {
		var child = children[i];
		var data = child.data;
		// remove slot attribute if the node is resolved as a Vue slot node
		if (data && data.attrs && data.attrs.slot) {
		  delete data.attrs.slot;
		}
		// named slots should only be respected if the vnode was rendered in the
		// same context.
		if ((child.context === context || child.fnContext === context) &&
		  data && data.slot != null
		) {
		  var name = data.slot;
		  var slot = (slots[name] || (slots[name] = []));
		  if (child.tag === 'template') {
			slot.push.apply(slot, child.children || []);
		  } else {
			slot.push(child);
		  }
		} else {
		  (slots.default || (slots.default = [])).push(child);
		}
	  }
	  // ignore slots that contains only whitespace
	  for (var name$1 in slots) {
		if (slots[name$1].every(isWhitespace)) {
		  delete slots[name$1];
		}
	  }
	  return slots
	}
  
	function isWhitespace (node) {
	  return (node.isComment && !node.asyncFactory) || node.text === ' '
	}
  
	/*  */
  
	function isAsyncPlaceholder (node) {
	  return node.isComment && node.asyncFactory
	}
  
	/*  */
  
	function normalizeScopedSlots (
	  slots,
	  normalSlots,
	  prevSlots
	) {
	  var res;
	  var hasNormalSlots = Object.keys(normalSlots).length > 0;
	  var isStable = slots ? !!slots.$stable : !hasNormalSlots;
	  var key = slots && slots.$key;
	  if (!slots) {
		res = {};
	  } else if (slots._normalized) {
		// fast path 1: child component re-render only, parent did not change
		return slots._normalized
	  } else if (
		isStable &&
		prevSlots &&
		prevSlots !== emptyObject &&
		key === prevSlots.$key &&
		!hasNormalSlots &&
		!prevSlots.$hasNormal
	  ) {
		// fast path 2: stable scoped slots w/ no normal slots to proxy,
		// only need to normalize once
		return prevSlots
	  } else {
		res = {};
		for (var key$1 in slots) {
		  if (slots[key$1] && key$1[0] !== '$') {
			res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
		  }
		}
	  }
	  // expose normal slots on scopedSlots
	  for (var key$2 in normalSlots) {
		if (!(key$2 in res)) {
		  res[key$2] = proxyNormalSlot(normalSlots, key$2);
		}
	  }
	  // avoriaz seems to mock a non-extensible $scopedSlots object
	  // and when that is passed down this would cause an error
	  if (slots && Object.isExtensible(slots)) {
		(slots)._normalized = res;
	  }
	  def(res, '$stable', isStable);
	  def(res, '$key', key);
	  def(res, '$hasNormal', hasNormalSlots);
	  return res
	}
  
	function normalizeScopedSlot(normalSlots, key, fn) {
	  var normalized = function () {
		var res = arguments.length ? fn.apply(null, arguments) : fn({});
		res = res && typeof res === 'object' && !Array.isArray(res)
		  ? [res] // single vnode
		  : normalizeChildren(res);
		var vnode = res && res[0];
		return res && (
		  !vnode ||
		  (res.length === 1 && vnode.isComment && !isAsyncPlaceholder(vnode)) // #9658, #10391
		) ? undefined
		  : res
	  };
	  // this is a slot using the new v-slot syntax without scope. although it is
	  // compiled as a scoped slot, render fn users would expect it to be present
	  // on this.$slots because the usage is semantically a normal slot.
	  if (fn.proxy) {
		Object.defineProperty(normalSlots, key, {
		  get: normalized,
		  enumerable: true,
		  configurable: true
		});
	  }
	  return normalized
	}
  
	function proxyNormalSlot(slots, key) {
	  return function () { return slots[key]; }
	}
  
	/*  */
  
	/**
	 * Runtime helper for rendering v-for lists.
	 */
	function renderList (
	  val,
	  render
	) {
	  var ret, i, l, keys, key;
	  if (Array.isArray(val) || typeof val === 'string') {
		ret = new Array(val.length);
		for (i = 0, l = val.length; i < l; i++) {
		  ret[i] = render(val[i], i);
		}
	  } else if (typeof val === 'number') {
		ret = new Array(val);
		for (i = 0; i < val; i++) {
		  ret[i] = render(i + 1, i);
		}
	  } else if (isObject(val)) {
		if (hasSymbol && val[Symbol.iterator]) {
		  ret = [];
		  var iterator = val[Symbol.iterator]();
		  var result = iterator.next();
		  while (!result.done) {
			ret.push(render(result.value, ret.length));
			result = iterator.next();
		  }
		} else {
		  keys = Object.keys(val);
		  ret = new Array(keys.length);
		  for (i = 0, l = keys.length; i < l; i++) {
			key = keys[i];
			ret[i] = render(val[key], key, i);
		  }
		}
	  }
	  if (!isDef(ret)) {
		ret = [];
	  }
	  (ret)._isVList = true;
	  return ret
	}
  
	/*  */
  
	/**
	 * Runtime helper for rendering <slot>
	 */
	function renderSlot (
	  name,
	  fallbackRender,
	  props,
	  bindObject
	) {
	  var scopedSlotFn = this.$scopedSlots[name];
	  var nodes;
	  if (scopedSlotFn) {
		// scoped slot
		props = props || {};
		if (bindObject) {
		  if (!isObject(bindObject)) {
			warn('slot v-bind without argument expects an Object', this);
		  }
		  props = extend(extend({}, bindObject), props);
		}
		nodes =
		  scopedSlotFn(props) ||
		  (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender);
	  } else {
		nodes =
		  this.$slots[name] ||
		  (typeof fallbackRender === 'function' ? fallbackRender() : fallbackRender);
	  }
  
	  var target = props && props.slot;
	  if (target) {
		return this.$createElement('template', { slot: target }, nodes)
	  } else {
		return nodes
	  }
	}
  
	/*  */
  
	/**
	 * Runtime helper for resolving filters
	 */
	function resolveFilter (id) {
	  return resolveAsset(this.$options, 'filters', id, true) || identity
	}
  
	/*  */
  
	function isKeyNotMatch (expect, actual) {
	  if (Array.isArray(expect)) {
		return expect.indexOf(actual) === -1
	  } else {
		return expect !== actual
	  }
	}
  
	/**
	 * Runtime helper for checking keyCodes from config.
	 * exposed as Vue.prototype._k
	 * passing in eventKeyName as last argument separately for backwards compat
	 */
	function checkKeyCodes (
	  eventKeyCode,
	  key,
	  builtInKeyCode,
	  eventKeyName,
	  builtInKeyName
	) {
	  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
	  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
		return isKeyNotMatch(builtInKeyName, eventKeyName)
	  } else if (mappedKeyCode) {
		return isKeyNotMatch(mappedKeyCode, eventKeyCode)
	  } else if (eventKeyName) {
		return hyphenate(eventKeyName) !== key
	  }
	  return eventKeyCode === undefined
	}
  
	/*  */
  
	/**
	 * Runtime helper for merging v-bind="object" into a VNode's data.
	 */
	function bindObjectProps (
	  data,
	  tag,
	  value,
	  asProp,
	  isSync
	) {
	  if (value) {
		if (!isObject(value)) {
		  warn(
			'v-bind without argument expects an Object or Array value',
			this
		  );
		} else {
		  if (Array.isArray(value)) {
			value = toObject(value);
		  }
		  var hash;
		  var loop = function ( key ) {
			if (
			  key === 'class' ||
			  key === 'style' ||
			  isReservedAttribute(key)
			) {
			  hash = data;
			} else {
			  var type = data.attrs && data.attrs.type;
			  hash = asProp || config.mustUseProp(tag, type, key)
				? data.domProps || (data.domProps = {})
				: data.attrs || (data.attrs = {});
			}
			var camelizedKey = camelize(key);
			var hyphenatedKey = hyphenate(key);
			if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
			  hash[key] = value[key];
  
			  if (isSync) {
				var on = data.on || (data.on = {});
				on[("update:" + key)] = function ($event) {
				  value[key] = $event;
				};
			  }
			}
		  };
  
		  for (var key in value) loop( key );
		}
	  }
	  return data
	}
  
	/*  */
  
	/**
	 * Runtime helper for rendering static trees.
	 */
	function renderStatic (
	  index,
	  isInFor
	) {
	  var cached = this._staticTrees || (this._staticTrees = []);
	  var tree = cached[index];
	  // if has already-rendered static tree and not inside v-for,
	  // we can reuse the same tree.
	  if (tree && !isInFor) {
		return tree
	  }
	  // otherwise, render a fresh tree.
	  tree = cached[index] = this.$options.staticRenderFns[index].call(
		this._renderProxy,
		null,
		this // for render fns generated for functional component templates
	  );
	  markStatic(tree, ("__static__" + index), false);
	  return tree
	}
  
	/**
	 * Runtime helper for v-once.
	 * Effectively it means marking the node as static with a unique key.
	 */
	function markOnce (
	  tree,
	  index,
	  key
	) {
	  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
	  return tree
	}
  
	function markStatic (
	  tree,
	  key,
	  isOnce
	) {
	  if (Array.isArray(tree)) {
		for (var i = 0; i < tree.length; i++) {
		  if (tree[i] && typeof tree[i] !== 'string') {
			markStaticNode(tree[i], (key + "_" + i), isOnce);
		  }
		}
	  } else {
		markStaticNode(tree, key, isOnce);
	  }
	}
  
	function markStaticNode (node, key, isOnce) {
	  node.isStatic = true;
	  node.key = key;
	  node.isOnce = isOnce;
	}
  
	/*  */
  
	function bindObjectListeners (data, value) {
	  if (value) {
		if (!isPlainObject(value)) {
		  warn(
			'v-on without argument expects an Object value',
			this
		  );
		} else {
		  var on = data.on = data.on ? extend({}, data.on) : {};
		  for (var key in value) {
			var existing = on[key];
			var ours = value[key];
			on[key] = existing ? [].concat(existing, ours) : ours;
		  }
		}
	  }
	  return data
	}
  
	/*  */
  
	function resolveScopedSlots (
	  fns, // see flow/vnode
	  res,
	  // the following are added in 2.6
	  hasDynamicKeys,
	  contentHashKey
	) {
	  res = res || { $stable: !hasDynamicKeys };
	  for (var i = 0; i < fns.length; i++) {
		var slot = fns[i];
		if (Array.isArray(slot)) {
		  resolveScopedSlots(slot, res, hasDynamicKeys);
		} else if (slot) {
		  // marker for reverse proxying v-slot without scope on this.$slots
		  if (slot.proxy) {
			slot.fn.proxy = true;
		  }
		  res[slot.key] = slot.fn;
		}
	  }
	  if (contentHashKey) {
		(res).$key = contentHashKey;
	  }
	  return res
	}
  
	/*  */
  
	function bindDynamicKeys (baseObj, values) {
	  for (var i = 0; i < values.length; i += 2) {
		var key = values[i];
		if (typeof key === 'string' && key) {
		  baseObj[values[i]] = values[i + 1];
		} else if (key !== '' && key !== null) {
		  // null is a special value for explicitly removing a binding
		  warn(
			("Invalid value for dynamic directive argument (expected string or null): " + key),
			this
		  );
		}
	  }
	  return baseObj
	}
  
	// helper to dynamically append modifier runtime markers to event names.
	// ensure only append when value is already string, otherwise it will be cast
	// to string and cause the type check to miss.
	function prependModifier (value, symbol) {
	  return typeof value === 'string' ? symbol + value : value
	}
  
	/*  */
  
	function installRenderHelpers (target) {
	  target._o = markOnce;
	  target._n = toNumber;
	  target._s = toString;
	  target._l = renderList;
	  target._t = renderSlot;
	  target._q = looseEqual;
	  target._i = looseIndexOf;
	  target._m = renderStatic;
	  target._f = resolveFilter;
	  target._k = checkKeyCodes;
	  target._b = bindObjectProps;
	  target._v = createTextVNode;
	  target._e = createEmptyVNode;
	  target._u = resolveScopedSlots;
	  target._g = bindObjectListeners;
	  target._d = bindDynamicKeys;
	  target._p = prependModifier;
	}
  
	/*  */
  
	function FunctionalRenderContext (
	  data,
	  props,
	  children,
	  parent,
	  Ctor
	) {
	  var this$1 = this;
  
	  var options = Ctor.options;
	  // ensure the createElement function in functional components
	  // gets a unique context - this is necessary for correct named slot check
	  var contextVm;
	  if (hasOwn(parent, '_uid')) {
		contextVm = Object.create(parent);
		// $flow-disable-line
		contextVm._original = parent;
	  } else {
		// the context vm passed in is a functional context as well.
		// in this case we want to make sure we are able to get a hold to the
		// real context instance.
		contextVm = parent;
		// $flow-disable-line
		parent = parent._original;
	  }
	  var isCompiled = isTrue(options._compiled);
	  var needNormalization = !isCompiled;
  
	  this.data = data;
	  this.props = props;
	  this.children = children;
	  this.parent = parent;
	  this.listeners = data.on || emptyObject;
	  this.injections = resolveInject(options.inject, parent);
	  this.slots = function () {
		if (!this$1.$slots) {
		  normalizeScopedSlots(
			data.scopedSlots,
			this$1.$slots = resolveSlots(children, parent)
		  );
		}
		return this$1.$slots
	  };
  
	  Object.defineProperty(this, 'scopedSlots', ({
		enumerable: true,
		get: function get () {
		  return normalizeScopedSlots(data.scopedSlots, this.slots())
		}
	  }));
  
	  // support for compiled functional template
	  if (isCompiled) {
		// exposing $options for renderStatic()
		this.$options = options;
		// pre-resolve slots for renderSlot()
		this.$slots = this.slots();
		this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
	  }
  
	  if (options._scopeId) {
		this._c = function (a, b, c, d) {
		  var vnode = createElement(contextVm, a, b, c, d, needNormalization);
		  if (vnode && !Array.isArray(vnode)) {
			vnode.fnScopeId = options._scopeId;
			vnode.fnContext = parent;
		  }
		  return vnode
		};
	  } else {
		this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
	  }
	}
  
	installRenderHelpers(FunctionalRenderContext.prototype);
  
	function createFunctionalComponent (
	  Ctor,
	  propsData,
	  data,
	  contextVm,
	  children
	) {
	  var options = Ctor.options;
	  var props = {};
	  var propOptions = options.props;
	  if (isDef(propOptions)) {
		for (var key in propOptions) {
		  props[key] = validateProp(key, propOptions, propsData || emptyObject);
		}
	  } else {
		if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
		if (isDef(data.props)) { mergeProps(props, data.props); }
	  }
  
	  var renderContext = new FunctionalRenderContext(
		data,
		props,
		children,
		contextVm,
		Ctor
	  );
  
	  var vnode = options.render.call(null, renderContext._c, renderContext);
  
	  if (vnode instanceof VNode) {
		return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
	  } else if (Array.isArray(vnode)) {
		var vnodes = normalizeChildren(vnode) || [];
		var res = new Array(vnodes.length);
		for (var i = 0; i < vnodes.length; i++) {
		  res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
		}
		return res
	  }
	}
  
	function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
	  // #7817 clone node before setting fnContext, otherwise if the node is reused
	  // (e.g. it was from a cached normal slot) the fnContext causes named slots
	  // that should not be matched to match.
	  var clone = cloneVNode(vnode);
	  clone.fnContext = contextVm;
	  clone.fnOptions = options;
	  {
		(clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
	  }
	  if (data.slot) {
		(clone.data || (clone.data = {})).slot = data.slot;
	  }
	  return clone
	}
  
	function mergeProps (to, from) {
	  for (var key in from) {
		to[camelize(key)] = from[key];
	  }
	}
  
	/*  */
  
	/*  */
  
	/*  */
  
	/*  */
  
	// inline hooks to be invoked on component VNodes during patch
	var componentVNodeHooks = {
	  init: function init (vnode, hydrating) {
		if (
		  vnode.componentInstance &&
		  !vnode.componentInstance._isDestroyed &&
		  vnode.data.keepAlive
		) {
		  // kept-alive components, treat as a patch
		  var mountedNode = vnode; // work around flow
		  componentVNodeHooks.prepatch(mountedNode, mountedNode);
		} else {
		  var child = vnode.componentInstance = createComponentInstanceForVnode(
			vnode,
			activeInstance
		  );
		  child.$mount(hydrating ? vnode.elm : undefined, hydrating);
		}
	  },
  
	  prepatch: function prepatch (oldVnode, vnode) {
		var options = vnode.componentOptions;
		var child = vnode.componentInstance = oldVnode.componentInstance;
		updateChildComponent(
		  child,
		  options.propsData, // updated props
		  options.listeners, // updated listeners
		  vnode, // new parent vnode
		  options.children // new children
		);
	  },
  
	  insert: function insert (vnode) {
		var context = vnode.context;
		var componentInstance = vnode.componentInstance;
		if (!componentInstance._isMounted) {
		  componentInstance._isMounted = true;
		  callHook(componentInstance, 'mounted');
		}
		if (vnode.data.keepAlive) {
		  if (context._isMounted) {
			// vue-router#1212
			// During updates, a kept-alive component's child components may
			// change, so directly walking the tree here may call activated hooks
			// on incorrect children. Instead we push them into a queue which will
			// be processed after the whole patch process ended.
			queueActivatedComponent(componentInstance);
		  } else {
			activateChildComponent(componentInstance, true /* direct */);
		  }
		}
	  },
  
	  destroy: function destroy (vnode) {
		var componentInstance = vnode.componentInstance;
		if (!componentInstance._isDestroyed) {
		  if (!vnode.data.keepAlive) {
			componentInstance.$destroy();
		  } else {
			deactivateChildComponent(componentInstance, true /* direct */);
		  }
		}
	  }
	};
  
	var hooksToMerge = Object.keys(componentVNodeHooks);
  
	function createComponent (
	  Ctor,
	  data,
	  context,
	  children,
	  tag
	) {
	  if (isUndef(Ctor)) {
		return
	  }
  
	  var baseCtor = context.$options._base;
  
	  // plain options object: turn it into a constructor
	  if (isObject(Ctor)) {
		Ctor = baseCtor.extend(Ctor);
	  }
  
	  // if at this stage it's not a constructor or an async component factory,
	  // reject.
	  if (typeof Ctor !== 'function') {
		{
		  warn(("Invalid Component definition: " + (String(Ctor))), context);
		}
		return
	  }
  
	  // async component
	  var asyncFactory;
	  if (isUndef(Ctor.cid)) {
		asyncFactory = Ctor;
		Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
		if (Ctor === undefined) {
		  // return a placeholder node for async component, which is rendered
		  // as a comment node but preserves all the raw information for the node.
		  // the information will be used for async server-rendering and hydration.
		  return createAsyncPlaceholder(
			asyncFactory,
			data,
			context,
			children,
			tag
		  )
		}
	  }
  
	  data = data || {};
  
	  // resolve constructor options in case global mixins are applied after
	  // component constructor creation
	  resolveConstructorOptions(Ctor);
  
	  // transform component v-model data into props & events
	  if (isDef(data.model)) {
		transformModel(Ctor.options, data);
	  }
  
	  // extract props
	  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
  
	  // functional component
	  if (isTrue(Ctor.options.functional)) {
		return createFunctionalComponent(Ctor, propsData, data, context, children)
	  }
  
	  // extract listeners, since these needs to be treated as
	  // child component listeners instead of DOM listeners
	  var listeners = data.on;
	  // replace with listeners with .native modifier
	  // so it gets processed during parent component patch.
	  data.on = data.nativeOn;
  
	  if (isTrue(Ctor.options.abstract)) {
		// abstract components do not keep anything
		// other than props & listeners & slot
  
		// work around flow
		var slot = data.slot;
		data = {};
		if (slot) {
		  data.slot = slot;
		}
	  }
  
	  // install component management hooks onto the placeholder node
	  installComponentHooks(data);
  
	  // return a placeholder vnode
	  var name = Ctor.options.name || tag;
	  var vnode = new VNode(
		("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
		data, undefined, undefined, undefined, context,
		{ Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
		asyncFactory
	  );
  
	  return vnode
	}
  
	function createComponentInstanceForVnode (
	  // we know it's MountedComponentVNode but flow doesn't
	  vnode,
	  // activeInstance in lifecycle state
	  parent
	) {
	  var options = {
		_isComponent: true,
		_parentVnode: vnode,
		parent: parent
	  };
	  // check inline-template render functions
	  var inlineTemplate = vnode.data.inlineTemplate;
	  if (isDef(inlineTemplate)) {
		options.render = inlineTemplate.render;
		options.staticRenderFns = inlineTemplate.staticRenderFns;
	  }
	  return new vnode.componentOptions.Ctor(options)
	}
  
	function installComponentHooks (data) {
	  var hooks = data.hook || (data.hook = {});
	  for (var i = 0; i < hooksToMerge.length; i++) {
		var key = hooksToMerge[i];
		var existing = hooks[key];
		var toMerge = componentVNodeHooks[key];
		if (existing !== toMerge && !(existing && existing._merged)) {
		  hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
		}
	  }
	}
  
	function mergeHook$1 (f1, f2) {
	  var merged = function (a, b) {
		// flow complains about extra args which is why we use any
		f1(a, b);
		f2(a, b);
	  };
	  merged._merged = true;
	  return merged
	}
  
	// transform component v-model info (value and callback) into
	// prop and event handler respectively.
	function transformModel (options, data) {
	  var prop = (options.model && options.model.prop) || 'value';
	  var event = (options.model && options.model.event) || 'input'
	  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
	  var on = data.on || (data.on = {});
	  var existing = on[event];
	  var callback = data.model.callback;
	  if (isDef(existing)) {
		if (
		  Array.isArray(existing)
			? existing.indexOf(callback) === -1
			: existing !== callback
		) {
		  on[event] = [callback].concat(existing);
		}
	  } else {
		on[event] = callback;
	  }
	}
  
	/*  */
  
	var SIMPLE_NORMALIZE = 1;
	var ALWAYS_NORMALIZE = 2;
  
	// wrapper function for providing a more flexible interface
	// without getting yelled at by flow
	function createElement (
	  context,
	  tag,
	  data,
	  children,
	  normalizationType,
	  alwaysNormalize
	) {
	  if (Array.isArray(data) || isPrimitive(data)) {
		normalizationType = children;
		children = data;
		data = undefined;
	  }
	  if (isTrue(alwaysNormalize)) {
		normalizationType = ALWAYS_NORMALIZE;
	  }
	  return _createElement(context, tag, data, children, normalizationType)
	}
  
	function _createElement (
	  context,
	  tag,
	  data,
	  children,
	  normalizationType
	) {
	  if (isDef(data) && isDef((data).__ob__)) {
		warn(
		  "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
		  'Always create fresh vnode data objects in each render!',
		  context
		);
		return createEmptyVNode()
	  }
	  // object syntax in v-bind
	  if (isDef(data) && isDef(data.is)) {
		tag = data.is;
	  }
	  if (!tag) {
		// in case of component :is set to falsy value
		return createEmptyVNode()
	  }
	  // warn against non-primitive key
	  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
	  ) {
		{
		  warn(
			'Avoid using non-primitive value as key, ' +
			'use string/number value instead.',
			context
		  );
		}
	  }
	  // support single function children as default scoped slot
	  if (Array.isArray(children) &&
		typeof children[0] === 'function'
	  ) {
		data = data || {};
		data.scopedSlots = { default: children[0] };
		children.length = 0;
	  }
	  if (normalizationType === ALWAYS_NORMALIZE) {
		children = normalizeChildren(children);
	  } else if (normalizationType === SIMPLE_NORMALIZE) {
		children = simpleNormalizeChildren(children);
	  }
	  var vnode, ns;
	  if (typeof tag === 'string') {
		var Ctor;
		ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
		if (config.isReservedTag(tag)) {
		  // platform built-in elements
		  if (isDef(data) && isDef(data.nativeOn) && data.tag !== 'component') {
			warn(
			  ("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">."),
			  context
			);
		  }
		  vnode = new VNode(
			config.parsePlatformTagName(tag), data, children,
			undefined, undefined, context
		  );
		} else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
		  // component
		  vnode = createComponent(Ctor, data, context, children, tag);
		} else {
		  // unknown or unlisted namespaced elements
		  // check at runtime because it may get assigned a namespace when its
		  // parent normalizes children
		  vnode = new VNode(
			tag, data, children,
			undefined, undefined, context
		  );
		}
	  } else {
		// direct component options / constructor
		vnode = createComponent(tag, data, context, children);
	  }
	  if (Array.isArray(vnode)) {
		return vnode
	  } else if (isDef(vnode)) {
		if (isDef(ns)) { applyNS(vnode, ns); }
		if (isDef(data)) { registerDeepBindings(data); }
		return vnode
	  } else {
		return createEmptyVNode()
	  }
	}
  
	function applyNS (vnode, ns, force) {
	  vnode.ns = ns;
	  if (vnode.tag === 'foreignObject') {
		// use default namespace inside foreignObject
		ns = undefined;
		force = true;
	  }
	  if (isDef(vnode.children)) {
		for (var i = 0, l = vnode.children.length; i < l; i++) {
		  var child = vnode.children[i];
		  if (isDef(child.tag) && (
			isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
			applyNS(child, ns, force);
		  }
		}
	  }
	}
  
	// ref #5318
	// necessary to ensure parent re-render when deep bindings like :style and
	// :class are used on slot nodes
	function registerDeepBindings (data) {
	  if (isObject(data.style)) {
		traverse(data.style);
	  }
	  if (isObject(data.class)) {
		traverse(data.class);
	  }
	}
  
	/*  */
  
	function initRender (vm) {
	  vm._vnode = null; // the root of the child tree
	  vm._staticTrees = null; // v-once cached trees
	  var options = vm.$options;
	  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
	  var renderContext = parentVnode && parentVnode.context;
	  vm.$slots = resolveSlots(options._renderChildren, renderContext);
	  vm.$scopedSlots = emptyObject;
	  // bind the createElement fn to this instance
	  // so that we get proper render context inside it.
	  // args order: tag, data, children, normalizationType, alwaysNormalize
	  // internal version is used by render functions compiled from templates
	  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
	  // normalization is always applied for the public version, used in
	  // user-written render functions.
	  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
  
	  // $attrs & $listeners are exposed for easier HOC creation.
	  // they need to be reactive so that HOCs using them are always updated
	  var parentData = parentVnode && parentVnode.data;
  
	  /* istanbul ignore else */
	  {
		defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
		  !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
		}, true);
		defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
		  !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
		}, true);
	  }
	}
  
	var currentRenderingInstance = null;
  
	function renderMixin (Vue) {
	  // install runtime convenience helpers
	  installRenderHelpers(Vue.prototype);
  
	  Vue.prototype.$nextTick = function (fn) {
		return nextTick(fn, this)
	  };
  
	  Vue.prototype._render = function () {
		var vm = this;
		var ref = vm.$options;
		var render = ref.render;
		var _parentVnode = ref._parentVnode;
  
		if (_parentVnode) {
		  vm.$scopedSlots = normalizeScopedSlots(
			_parentVnode.data.scopedSlots,
			vm.$slots,
			vm.$scopedSlots
		  );
		}
  
		// set parent vnode. this allows render functions to have access
		// to the data on the placeholder node.
		vm.$vnode = _parentVnode;
		// render self
		var vnode;
		try {
		  // There's no need to maintain a stack because all render fns are called
		  // separately from one another. Nested component's render fns are called
		  // when parent component is patched.
		  currentRenderingInstance = vm;
		  vnode = render.call(vm._renderProxy, vm.$createElement);
		} catch (e) {
		  handleError(e, vm, "render");
		  // return error render result,
		  // or previous vnode to prevent render error causing blank component
		  /* istanbul ignore else */
		  if (vm.$options.renderError) {
			try {
			  vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
			} catch (e) {
			  handleError(e, vm, "renderError");
			  vnode = vm._vnode;
			}
		  } else {
			vnode = vm._vnode;
		  }
		} finally {
		  currentRenderingInstance = null;
		}
		// if the returned array contains only a single node, allow it
		if (Array.isArray(vnode) && vnode.length === 1) {
		  vnode = vnode[0];
		}
		// return empty vnode in case the render function errored out
		if (!(vnode instanceof VNode)) {
		  if (Array.isArray(vnode)) {
			warn(
			  'Multiple root nodes returned from render function. Render function ' +
			  'should return a single root node.',
			  vm
			);
		  }
		  vnode = createEmptyVNode();
		}
		// set parent
		vnode.parent = _parentVnode;
		return vnode
	  };
	}
  
	/*  */
  
	function ensureCtor (comp, base) {
	  if (
		comp.__esModule ||
		(hasSymbol && comp[Symbol.toStringTag] === 'Module')
	  ) {
		comp = comp.default;
	  }
	  return isObject(comp)
		? base.extend(comp)
		: comp
	}
  
	function createAsyncPlaceholder (
	  factory,
	  data,
	  context,
	  children,
	  tag
	) {
	  var node = createEmptyVNode();
	  node.asyncFactory = factory;
	  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
	  return node
	}
  
	function resolveAsyncComponent (
	  factory,
	  baseCtor
	) {
	  if (isTrue(factory.error) && isDef(factory.errorComp)) {
		return factory.errorComp
	  }
  
	  if (isDef(factory.resolved)) {
		return factory.resolved
	  }
  
	  var owner = currentRenderingInstance;
	  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
		// already pending
		factory.owners.push(owner);
	  }
  
	  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
		return factory.loadingComp
	  }
  
	  if (owner && !isDef(factory.owners)) {
		var owners = factory.owners = [owner];
		var sync = true;
		var timerLoading = null;
		var timerTimeout = null
  
		;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
  
		var forceRender = function (renderCompleted) {
		  for (var i = 0, l = owners.length; i < l; i++) {
			(owners[i]).$forceUpdate();
		  }
  
		  if (renderCompleted) {
			owners.length = 0;
			if (timerLoading !== null) {
			  clearTimeout(timerLoading);
			  timerLoading = null;
			}
			if (timerTimeout !== null) {
			  clearTimeout(timerTimeout);
			  timerTimeout = null;
			}
		  }
		};
  
		var resolve = once(function (res) {
		  // cache resolved
		  factory.resolved = ensureCtor(res, baseCtor);
		  // invoke callbacks only if this is not a synchronous resolve
		  // (async resolves are shimmed as synchronous during SSR)
		  if (!sync) {
			forceRender(true);
		  } else {
			owners.length = 0;
		  }
		});
  
		var reject = once(function (reason) {
		  warn(
			"Failed to resolve async component: " + (String(factory)) +
			(reason ? ("\nReason: " + reason) : '')
		  );
		  if (isDef(factory.errorComp)) {
			factory.error = true;
			forceRender(true);
		  }
		});
  
		var res = factory(resolve, reject);
  
		if (isObject(res)) {
		  if (isPromise(res)) {
			// () => Promise
			if (isUndef(factory.resolved)) {
			  res.then(resolve, reject);
			}
		  } else if (isPromise(res.component)) {
			res.component.then(resolve, reject);
  
			if (isDef(res.error)) {
			  factory.errorComp = ensureCtor(res.error, baseCtor);
			}
  
			if (isDef(res.loading)) {
			  factory.loadingComp = ensureCtor(res.loading, baseCtor);
			  if (res.delay === 0) {
				factory.loading = true;
			  } else {
				timerLoading = setTimeout(function () {
				  timerLoading = null;
				  if (isUndef(factory.resolved) && isUndef(factory.error)) {
					factory.loading = true;
					forceRender(false);
				  }
				}, res.delay || 200);
			  }
			}
  
			if (isDef(res.timeout)) {
			  timerTimeout = setTimeout(function () {
				timerTimeout = null;
				if (isUndef(factory.resolved)) {
				  reject(
					"timeout (" + (res.timeout) + "ms)"
				  );
				}
			  }, res.timeout);
			}
		  }
		}
  
		sync = false;
		// return in case resolved synchronously
		return factory.loading
		  ? factory.loadingComp
		  : factory.resolved
	  }
	}
  
	/*  */
  
	function getFirstComponentChild (children) {
	  if (Array.isArray(children)) {
		for (var i = 0; i < children.length; i++) {
		  var c = children[i];
		  if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
			return c
		  }
		}
	  }
	}
  
	/*  */
  
	/*  */
  
	function initEvents (vm) {
	  vm._events = Object.create(null);
	  vm._hasHookEvent = false;
	  // init parent attached events
	  var listeners = vm.$options._parentListeners;
	  if (listeners) {
		updateComponentListeners(vm, listeners);
	  }
	}
  
	var target;
  
	function add (event, fn) {
	  target.$on(event, fn);
	}
  
	function remove$1 (event, fn) {
	  target.$off(event, fn);
	}
  
	function createOnceHandler (event, fn) {
	  var _target = target;
	  return function onceHandler () {
		var res = fn.apply(null, arguments);
		if (res !== null) {
		  _target.$off(event, onceHandler);
		}
	  }
	}
  
	function updateComponentListeners (
	  vm,
	  listeners,
	  oldListeners
	) {
	  target = vm;
	  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
	  target = undefined;
	}
  
	function eventsMixin (Vue) {
	  var hookRE = /^hook:/;
	  Vue.prototype.$on = function (event, fn) {
		var vm = this;
		if (Array.isArray(event)) {
		  for (var i = 0, l = event.length; i < l; i++) {
			vm.$on(event[i], fn);
		  }
		} else {
		  (vm._events[event] || (vm._events[event] = [])).push(fn);
		  // optimize hook:event cost by using a boolean flag marked at registration
		  // instead of a hash lookup
		  if (hookRE.test(event)) {
			vm._hasHookEvent = true;
		  }
		}
		return vm
	  };
  
	  Vue.prototype.$once = function (event, fn) {
		var vm = this;
		function on () {
		  vm.$off(event, on);
		  fn.apply(vm, arguments);
		}
		on.fn = fn;
		vm.$on(event, on);
		return vm
	  };
  
	  Vue.prototype.$off = function (event, fn) {
		var vm = this;
		// all
		if (!arguments.length) {
		  vm._events = Object.create(null);
		  return vm
		}
		// array of events
		if (Array.isArray(event)) {
		  for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
			vm.$off(event[i$1], fn);
		  }
		  return vm
		}
		// specific event
		var cbs = vm._events[event];
		if (!cbs) {
		  return vm
		}
		if (!fn) {
		  vm._events[event] = null;
		  return vm
		}
		// specific handler
		var cb;
		var i = cbs.length;
		while (i--) {
		  cb = cbs[i];
		  if (cb === fn || cb.fn === fn) {
			cbs.splice(i, 1);
			break
		  }
		}
		return vm
	  };
  
	  Vue.prototype.$emit = function (event) {
		var vm = this;
		{
		  var lowerCaseEvent = event.toLowerCase();
		  if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
			tip(
			  "Event \"" + lowerCaseEvent + "\" is emitted in component " +
			  (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
			  "Note that HTML attributes are case-insensitive and you cannot use " +
			  "v-on to listen to camelCase events when using in-DOM templates. " +
			  "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
			);
		  }
		}
		var cbs = vm._events[event];
		if (cbs) {
		  cbs = cbs.length > 1 ? toArray(cbs) : cbs;
		  var args = toArray(arguments, 1);
		  var info = "event handler for \"" + event + "\"";
		  for (var i = 0, l = cbs.length; i < l; i++) {
			invokeWithErrorHandling(cbs[i], vm, args, vm, info);
		  }
		}
		return vm
	  };
	}
  
	/*  */
  
	var activeInstance = null;
	var isUpdatingChildComponent = false;
  
	function setActiveInstance(vm) {
	  var prevActiveInstance = activeInstance;
	  activeInstance = vm;
	  return function () {
		activeInstance = prevActiveInstance;
	  }
	}
  
	function initLifecycle (vm) {
	  var options = vm.$options;
  
	  // locate first non-abstract parent
	  var parent = options.parent;
	  if (parent && !options.abstract) {
		while (parent.$options.abstract && parent.$parent) {
		  parent = parent.$parent;
		}
		parent.$children.push(vm);
	  }
  
	  vm.$parent = parent;
	  vm.$root = parent ? parent.$root : vm;
  
	  vm.$children = [];
	  vm.$refs = {};
  
	  vm._watcher = null;
	  vm._inactive = null;
	  vm._directInactive = false;
	  vm._isMounted = false;
	  vm._isDestroyed = false;
	  vm._isBeingDestroyed = false;
	}
  
	function lifecycleMixin (Vue) {
	  Vue.prototype._update = function (vnode, hydrating) {
		var vm = this;
		var prevEl = vm.$el;
		var prevVnode = vm._vnode;
		var restoreActiveInstance = setActiveInstance(vm);
		vm._vnode = vnode;
		// Vue.prototype.__patch__ is injected in entry points
		// based on the rendering backend used.
		if (!prevVnode) {
		  // initial render
		  vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
		} else {
		  // updates
		  vm.$el = vm.__patch__(prevVnode, vnode);
		}
		restoreActiveInstance();
		// update __vue__ reference
		if (prevEl) {
		  prevEl.__vue__ = null;
		}
		if (vm.$el) {
		  vm.$el.__vue__ = vm;
		}
		// if parent is an HOC, update its $el as well
		if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
		  vm.$parent.$el = vm.$el;
		}
		// updated hook is called by the scheduler to ensure that children are
		// updated in a parent's updated hook.
	  };
  
	  Vue.prototype.$forceUpdate = function () {
		var vm = this;
		if (vm._watcher) {
		  vm._watcher.update();
		}
	  };
  
	  Vue.prototype.$destroy = function () {
		var vm = this;
		if (vm._isBeingDestroyed) {
		  return
		}
		callHook(vm, 'beforeDestroy');
		vm._isBeingDestroyed = true;
		// remove self from parent
		var parent = vm.$parent;
		if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
		  remove(parent.$children, vm);
		}
		// teardown watchers
		if (vm._watcher) {
		  vm._watcher.teardown();
		}
		var i = vm._watchers.length;
		while (i--) {
		  vm._watchers[i].teardown();
		}
		// remove reference from data ob
		// frozen object may not have observer.
		if (vm._data.__ob__) {
		  vm._data.__ob__.vmCount--;
		}
		// call the last hook...
		vm._isDestroyed = true;
		// invoke destroy hooks on current rendered tree
		vm.__patch__(vm._vnode, null);
		// fire destroyed hook
		callHook(vm, 'destroyed');
		// turn off all instance listeners.
		vm.$off();
		// remove __vue__ reference
		if (vm.$el) {
		  vm.$el.__vue__ = null;
		}
		// release circular reference (#6759)
		if (vm.$vnode) {
		  vm.$vnode.parent = null;
		}
	  };
	}
  
	function mountComponent (
	  vm,
	  el,
	  hydrating
	) {
	  vm.$el = el;
	  if (!vm.$options.render) {
		vm.$options.render = createEmptyVNode;
		{
		  /* istanbul ignore if */
		  if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
			vm.$options.el || el) {
			warn(
			  'You are using the runtime-only build of Vue where the template ' +
			  'compiler is not available. Either pre-compile the templates into ' +
			  'render functions, or use the compiler-included build.',
			  vm
			);
		  } else {
			warn(
			  'Failed to mount component: template or render function not defined.',
			  vm
			);
		  }
		}
	  }
	  callHook(vm, 'beforeMount');
  
	  var updateComponent;
	  /* istanbul ignore if */
	  if (config.performance && mark) {
		updateComponent = function () {
		  var name = vm._name;
		  var id = vm._uid;
		  var startTag = "vue-perf-start:" + id;
		  var endTag = "vue-perf-end:" + id;
  
		  mark(startTag);
		  var vnode = vm._render();
		  mark(endTag);
		  measure(("vue " + name + " render"), startTag, endTag);
  
		  mark(startTag);
		  vm._update(vnode, hydrating);
		  mark(endTag);
		  measure(("vue " + name + " patch"), startTag, endTag);
		};
	  } else {
		updateComponent = function () {
		  vm._update(vm._render(), hydrating);
		};
	  }
  
	  // we set this to vm._watcher inside the watcher's constructor
	  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
	  // component's mounted hook), which relies on vm._watcher being already defined
	  new Watcher(vm, updateComponent, noop, {
		before: function before () {
		  if (vm._isMounted && !vm._isDestroyed) {
			callHook(vm, 'beforeUpdate');
		  }
		}
	  }, true /* isRenderWatcher */);
	  hydrating = false;
  
	  // manually mounted instance, call mounted on self
	  // mounted is called for render-created child components in its inserted hook
	  if (vm.$vnode == null) {
		vm._isMounted = true;
		callHook(vm, 'mounted');
	  }
	  return vm
	}
  
	function updateChildComponent (
	  vm,
	  propsData,
	  listeners,
	  parentVnode,
	  renderChildren
	) {
	  {
		isUpdatingChildComponent = true;
	  }
  
	  // determine whether component has slot children
	  // we need to do this before overwriting $options._renderChildren.
  
	  // check if there are dynamic scopedSlots (hand-written or compiled but with
	  // dynamic slot names). Static scoped slots compiled from template has the
	  // "$stable" marker.
	  var newScopedSlots = parentVnode.data.scopedSlots;
	  var oldScopedSlots = vm.$scopedSlots;
	  var hasDynamicScopedSlot = !!(
		(newScopedSlots && !newScopedSlots.$stable) ||
		(oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
		(newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key) ||
		(!newScopedSlots && vm.$scopedSlots.$key)
	  );
  
	  // Any static slot children from the parent may have changed during parent's
	  // update. Dynamic scoped slots may also have changed. In such cases, a forced
	  // update is necessary to ensure correctness.
	  var needsForceUpdate = !!(
		renderChildren ||               // has new static slots
		vm.$options._renderChildren ||  // has old static slots
		hasDynamicScopedSlot
	  );
  
	  vm.$options._parentVnode = parentVnode;
	  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
  
	  if (vm._vnode) { // update child tree's parent
		vm._vnode.parent = parentVnode;
	  }
	  vm.$options._renderChildren = renderChildren;
  
	  // update $attrs and $listeners hash
	  // these are also reactive so they may trigger child update if the child
	  // used them during render
	  vm.$attrs = parentVnode.data.attrs || emptyObject;
	  vm.$listeners = listeners || emptyObject;
  
	  // update props
	  if (propsData && vm.$options.props) {
		toggleObserving(false);
		var props = vm._props;
		var propKeys = vm.$options._propKeys || [];
		for (var i = 0; i < propKeys.length; i++) {
		  var key = propKeys[i];
		  var propOptions = vm.$options.props; // wtf flow?
		  props[key] = validateProp(key, propOptions, propsData, vm);
		}
		toggleObserving(true);
		// keep a copy of raw propsData
		vm.$options.propsData = propsData;
	  }
  
	  // update listeners
	  listeners = listeners || emptyObject;
	  var oldListeners = vm.$options._parentListeners;
	  vm.$options._parentListeners = listeners;
	  updateComponentListeners(vm, listeners, oldListeners);
  
	  // resolve slots + force update if has children
	  if (needsForceUpdate) {
		vm.$slots = resolveSlots(renderChildren, parentVnode.context);
		vm.$forceUpdate();
	  }
  
	  {
		isUpdatingChildComponent = false;
	  }
	}
  
	function isInInactiveTree (vm) {
	  while (vm && (vm = vm.$parent)) {
		if (vm._inactive) { return true }
	  }
	  return false
	}
  
	function activateChildComponent (vm, direct) {
	  if (direct) {
		vm._directInactive = false;
		if (isInInactiveTree(vm)) {
		  return
		}
	  } else if (vm._directInactive) {
		return
	  }
	  if (vm._inactive || vm._inactive === null) {
		vm._inactive = false;
		for (var i = 0; i < vm.$children.length; i++) {
		  activateChildComponent(vm.$children[i]);
		}
		callHook(vm, 'activated');
	  }
	}
  
	function deactivateChildComponent (vm, direct) {
	  if (direct) {
		vm._directInactive = true;
		if (isInInactiveTree(vm)) {
		  return
		}
	  }
	  if (!vm._inactive) {
		vm._inactive = true;
		for (var i = 0; i < vm.$children.length; i++) {
		  deactivateChildComponent(vm.$children[i]);
		}
		callHook(vm, 'deactivated');
	  }
	}
  
	function callHook (vm, hook) {
	  // #7573 disable dep collection when invoking lifecycle hooks
	  pushTarget();
	  var handlers = vm.$options[hook];
	  var info = hook + " hook";
	  if (handlers) {
		for (var i = 0, j = handlers.length; i < j; i++) {
		  invokeWithErrorHandling(handlers[i], vm, null, vm, info);
		}
	  }
	  if (vm._hasHookEvent) {
		vm.$emit('hook:' + hook);
	  }
	  popTarget();
	}
  
	/*  */
  
	var MAX_UPDATE_COUNT = 100;
  
	var queue = [];
	var activatedChildren = [];
	var has = {};
	var circular = {};
	var waiting = false;
	var flushing = false;
	var index = 0;
  
	/**
	 * Reset the scheduler's state.
	 */
	function resetSchedulerState () {
	  index = queue.length = activatedChildren.length = 0;
	  has = {};
	  {
		circular = {};
	  }
	  waiting = flushing = false;
	}
  
	// Async edge case #6566 requires saving the timestamp when event listeners are
	// attached. However, calling performance.now() has a perf overhead especially
	// if the page has thousands of event listeners. Instead, we take a timestamp
	// every time the scheduler flushes and use that for all event listeners
	// attached during that flush.
	var currentFlushTimestamp = 0;
  
	// Async edge case fix requires storing an event listener's attach timestamp.
	var getNow = Date.now;
  
	// Determine what event timestamp the browser is using. Annoyingly, the
	// timestamp can either be hi-res (relative to page load) or low-res
	// (relative to UNIX epoch), so in order to compare time we have to use the
	// same timestamp type when saving the flush timestamp.
	// All IE versions use low-res event timestamps, and have problematic clock
	// implementations (#9632)
	if (inBrowser && !isIE) {
	  var performance = window.performance;
	  if (
		performance &&
		typeof performance.now === 'function' &&
		getNow() > document.createEvent('Event').timeStamp
	  ) {
		// if the event timestamp, although evaluated AFTER the Date.now(), is
		// smaller than it, it means the event is using a hi-res timestamp,
		// and we need to use the hi-res version for event listener timestamps as
		// well.
		getNow = function () { return performance.now(); };
	  }
	}
  
	/**
	 * Flush both queues and run the watchers.
	 */
	function flushSchedulerQueue () {
	  currentFlushTimestamp = getNow();
	  flushing = true;
	  var watcher, id;
  
	  // Sort queue before flush.
	  // This ensures that:
	  // 1. Components are updated from parent to child. (because parent is always
	  //    created before the child)
	  // 2. A component's user watchers are run before its render watcher (because
	  //    user watchers are created before the render watcher)
	  // 3. If a component is destroyed during a parent component's watcher run,
	  //    its watchers can be skipped.
	  queue.sort(function (a, b) { return a.id - b.id; });
  
	  // do not cache length because more watchers might be pushed
	  // as we run existing watchers
	  for (index = 0; index < queue.length; index++) {
		watcher = queue[index];
		if (watcher.before) {
		  watcher.before();
		}
		id = watcher.id;
		has[id] = null;
		watcher.run();
		// in dev build, check and stop circular updates.
		if (has[id] != null) {
		  circular[id] = (circular[id] || 0) + 1;
		  if (circular[id] > MAX_UPDATE_COUNT) {
			warn(
			  'You may have an infinite update loop ' + (
				watcher.user
				  ? ("in watcher with expression \"" + (watcher.expression) + "\"")
				  : "in a component render function."
			  ),
			  watcher.vm
			);
			break
		  }
		}
	  }
  
	  // keep copies of post queues before resetting state
	  var activatedQueue = activatedChildren.slice();
	  var updatedQueue = queue.slice();
  
	  resetSchedulerState();
  
	  // call component updated and activated hooks
	  callActivatedHooks(activatedQueue);
	  callUpdatedHooks(updatedQueue);
  
	  // devtool hook
	  /* istanbul ignore if */
	  if (devtools && config.devtools) {
		devtools.emit('flush');
	  }
	}
  
	function callUpdatedHooks (queue) {
	  var i = queue.length;
	  while (i--) {
		var watcher = queue[i];
		var vm = watcher.vm;
		if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
		  callHook(vm, 'updated');
		}
	  }
	}
  
	/**
	 * Queue a kept-alive component that was activated during patch.
	 * The queue will be processed after the entire tree has been patched.
	 */
	function queueActivatedComponent (vm) {
	  // setting _inactive to false here so that a render function can
	  // rely on checking whether it's in an inactive tree (e.g. router-view)
	  vm._inactive = false;
	  activatedChildren.push(vm);
	}
  
	function callActivatedHooks (queue) {
	  for (var i = 0; i < queue.length; i++) {
		queue[i]._inactive = true;
		activateChildComponent(queue[i], true /* true */);
	  }
	}
  
	/**
	 * Push a watcher into the watcher queue.
	 * Jobs with duplicate IDs will be skipped unless it's
	 * pushed when the queue is being flushed.
	 */
	function queueWatcher (watcher) {
	  var id = watcher.id;
	  if (has[id] == null) {
		has[id] = true;
		if (!flushing) {
		  queue.push(watcher);
		} else {
		  // if already flushing, splice the watcher based on its id
		  // if already past its id, it will be run next immediately.
		  var i = queue.length - 1;
		  while (i > index && queue[i].id > watcher.id) {
			i--;
		  }
		  queue.splice(i + 1, 0, watcher);
		}
		// queue the flush
		if (!waiting) {
		  waiting = true;
  
		  if (!config.async) {
			flushSchedulerQueue();
			return
		  }
		  nextTick(flushSchedulerQueue);
		}
	  }
	}
  
	/*  */
  
  
  
	var uid$2 = 0;
  
	/**
	 * A watcher parses an expression, collects dependencies,
	 * and fires callback when the expression value changes.
	 * This is used for both the $watch() api and directives.
	 */
	var Watcher = function Watcher (
	  vm,
	  expOrFn,
	  cb,
	  options,
	  isRenderWatcher
	) {
	  this.vm = vm;
	  if (isRenderWatcher) {
		vm._watcher = this;
	  }
	  vm._watchers.push(this);
	  // options
	  if (options) {
		this.deep = !!options.deep;
		this.user = !!options.user;
		this.lazy = !!options.lazy;
		this.sync = !!options.sync;
		this.before = options.before;
	  } else {
		this.deep = this.user = this.lazy = this.sync = false;
	  }
	  this.cb = cb;
	  this.id = ++uid$2; // uid for batching
	  this.active = true;
	  this.dirty = this.lazy; // for lazy watchers
	  this.deps = [];
	  this.newDeps = [];
	  this.depIds = new _Set();
	  this.newDepIds = new _Set();
	  this.expression = expOrFn.toString();
	  // parse expression for getter
	  if (typeof expOrFn === 'function') {
		this.getter = expOrFn;
	  } else {
		this.getter = parsePath(expOrFn);
		if (!this.getter) {
		  this.getter = noop;
		  warn(
			"Failed watching path: \"" + expOrFn + "\" " +
			'Watcher only accepts simple dot-delimited paths. ' +
			'For full control, use a function instead.',
			vm
		  );
		}
	  }
	  this.value = this.lazy
		? undefined
		: this.get();
	};
  
	/**
	 * Evaluate the getter, and re-collect dependencies.
	 */
	Watcher.prototype.get = function get () {
	  pushTarget(this);
	  var value;
	  var vm = this.vm;
	  try {
		value = this.getter.call(vm, vm);
	  } catch (e) {
		if (this.user) {
		  handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
		} else {
		  throw e
		}
	  } finally {
		// "touch" every property so they are all tracked as
		// dependencies for deep watching
		if (this.deep) {
		  traverse(value);
		}
		popTarget();
		this.cleanupDeps();
	  }
	  return value
	};
  
	/**
	 * Add a dependency to this directive.
	 */
	Watcher.prototype.addDep = function addDep (dep) {
	  var id = dep.id;
	  if (!this.newDepIds.has(id)) {
		this.newDepIds.add(id);
		this.newDeps.push(dep);
		if (!this.depIds.has(id)) {
		  dep.addSub(this);
		}
	  }
	};
  
	/**
	 * Clean up for dependency collection.
	 */
	Watcher.prototype.cleanupDeps = function cleanupDeps () {
	  var i = this.deps.length;
	  while (i--) {
		var dep = this.deps[i];
		if (!this.newDepIds.has(dep.id)) {
		  dep.removeSub(this);
		}
	  }
	  var tmp = this.depIds;
	  this.depIds = this.newDepIds;
	  this.newDepIds = tmp;
	  this.newDepIds.clear();
	  tmp = this.deps;
	  this.deps = this.newDeps;
	  this.newDeps = tmp;
	  this.newDeps.length = 0;
	};
  
	/**
	 * Subscriber interface.
	 * Will be called when a dependency changes.
	 */
	Watcher.prototype.update = function update () {
	  /* istanbul ignore else */
	  if (this.lazy) {
		this.dirty = true;
	  } else if (this.sync) {
		this.run();
	  } else {
		queueWatcher(this);
	  }
	};
  
	/**
	 * Scheduler job interface.
	 * Will be called by the scheduler.
	 */
	Watcher.prototype.run = function run () {
	  if (this.active) {
		var value = this.get();
		if (
		  value !== this.value ||
		  // Deep watchers and watchers on Object/Arrays should fire even
		  // when the value is the same, because the value may
		  // have mutated.
		  isObject(value) ||
		  this.deep
		) {
		  // set new value
		  var oldValue = this.value;
		  this.value = value;
		  if (this.user) {
			var info = "callback for watcher \"" + (this.expression) + "\"";
			invokeWithErrorHandling(this.cb, this.vm, [value, oldValue], this.vm, info);
		  } else {
			this.cb.call(this.vm, value, oldValue);
		  }
		}
	  }
	};
  
	/**
	 * Evaluate the value of the watcher.
	 * This only gets called for lazy watchers.
	 */
	Watcher.prototype.evaluate = function evaluate () {
	  this.value = this.get();
	  this.dirty = false;
	};
  
	/**
	 * Depend on all deps collected by this watcher.
	 */
	Watcher.prototype.depend = function depend () {
	  var i = this.deps.length;
	  while (i--) {
		this.deps[i].depend();
	  }
	};
  
	/**
	 * Remove self from all dependencies' subscriber list.
	 */
	Watcher.prototype.teardown = function teardown () {
	  if (this.active) {
		// remove self from vm's watcher list
		// this is a somewhat expensive operation so we skip it
		// if the vm is being destroyed.
		if (!this.vm._isBeingDestroyed) {
		  remove(this.vm._watchers, this);
		}
		var i = this.deps.length;
		while (i--) {
		  this.deps[i].removeSub(this);
		}
		this.active = false;
	  }
	};
  
	/*  */
  
	var sharedPropertyDefinition = {
	  enumerable: true,
	  configurable: true,
	  get: noop,
	  set: noop
	};
  
	function proxy (target, sourceKey, key) {
	  sharedPropertyDefinition.get = function proxyGetter () {
		return this[sourceKey][key]
	  };
	  sharedPropertyDefinition.set = function proxySetter (val) {
		this[sourceKey][key] = val;
	  };
	  Object.defineProperty(target, key, sharedPropertyDefinition);
	}
  
	function initState (vm) {
	  vm._watchers = [];
	  var opts = vm.$options;
	  if (opts.props) { initProps(vm, opts.props); }
	  if (opts.methods) { initMethods(vm, opts.methods); }
	  if (opts.data) {
		initData(vm);
	  } else {
		observe(vm._data = {}, true /* asRootData */);
	  }
	  if (opts.computed) { initComputed(vm, opts.computed); }
	  if (opts.watch && opts.watch !== nativeWatch) {
		initWatch(vm, opts.watch);
	  }
	}
  
	function initProps (vm, propsOptions) {
	  var propsData = vm.$options.propsData || {};
	  var props = vm._props = {};
	  // cache prop keys so that future props updates can iterate using Array
	  // instead of dynamic object key enumeration.
	  var keys = vm.$options._propKeys = [];
	  var isRoot = !vm.$parent;
	  // root instance props should be converted
	  if (!isRoot) {
		toggleObserving(false);
	  }
	  var loop = function ( key ) {
		keys.push(key);
		var value = validateProp(key, propsOptions, propsData, vm);
		/* istanbul ignore else */
		{
		  var hyphenatedKey = hyphenate(key);
		  if (isReservedAttribute(hyphenatedKey) ||
			  config.isReservedAttr(hyphenatedKey)) {
			warn(
			  ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
			  vm
			);
		  }
		  defineReactive$$1(props, key, value, function () {
			if (!isRoot && !isUpdatingChildComponent) {
			  warn(
				"Avoid mutating a prop directly since the value will be " +
				"overwritten whenever the parent component re-renders. " +
				"Instead, use a data or computed property based on the prop's " +
				"value. Prop being mutated: \"" + key + "\"",
				vm
			  );
			}
		  });
		}
		// static props are already proxied on the component's prototype
		// during Vue.extend(). We only need to proxy props defined at
		// instantiation here.
		if (!(key in vm)) {
		  proxy(vm, "_props", key);
		}
	  };
  
	  for (var key in propsOptions) loop( key );
	  toggleObserving(true);
	}
  
	function initData (vm) {
	  var data = vm.$options.data;
	  data = vm._data = typeof data === 'function'
		? getData(data, vm)
		: data || {};
	  if (!isPlainObject(data)) {
		data = {};
		warn(
		  'data functions should return an object:\n' +
		  'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
		  vm
		);
	  }
	  // proxy data on instance
	  var keys = Object.keys(data);
	  var props = vm.$options.props;
	  var methods = vm.$options.methods;
	  var i = keys.length;
	  while (i--) {
		var key = keys[i];
		{
		  if (methods && hasOwn(methods, key)) {
			warn(
			  ("Method \"" + key + "\" has already been defined as a data property."),
			  vm
			);
		  }
		}
		if (props && hasOwn(props, key)) {
		  warn(
			"The data property \"" + key + "\" is already declared as a prop. " +
			"Use prop default value instead.",
			vm
		  );
		} else if (!isReserved(key)) {
		  proxy(vm, "_data", key);
		}
	  }
	  // observe data
	  observe(data, true /* asRootData */);
	}
  
	function getData (data, vm) {
	  // #7573 disable dep collection when invoking data getters
	  pushTarget();
	  try {
		return data.call(vm, vm)
	  } catch (e) {
		handleError(e, vm, "data()");
		return {}
	  } finally {
		popTarget();
	  }
	}
  
	var computedWatcherOptions = { lazy: true };
  
	function initComputed (vm, computed) {
	  // $flow-disable-line
	  var watchers = vm._computedWatchers = Object.create(null);
	  // computed properties are just getters during SSR
	  var isSSR = isServerRendering();
  
	  for (var key in computed) {
		var userDef = computed[key];
		var getter = typeof userDef === 'function' ? userDef : userDef.get;
		if (getter == null) {
		  warn(
			("Getter is missing for computed property \"" + key + "\"."),
			vm
		  );
		}
  
		if (!isSSR) {
		  // create internal watcher for the computed property.
		  watchers[key] = new Watcher(
			vm,
			getter || noop,
			noop,
			computedWatcherOptions
		  );
		}
  
		// component-defined computed properties are already defined on the
		// component prototype. We only need to define computed properties defined
		// at instantiation here.
		if (!(key in vm)) {
		  defineComputed(vm, key, userDef);
		} else {
		  if (key in vm.$data) {
			warn(("The computed property \"" + key + "\" is already defined in data."), vm);
		  } else if (vm.$options.props && key in vm.$options.props) {
			warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
		  } else if (vm.$options.methods && key in vm.$options.methods) {
			warn(("The computed property \"" + key + "\" is already defined as a method."), vm);
		  }
		}
	  }
	}
  
	function defineComputed (
	  target,
	  key,
	  userDef
	) {
	  var shouldCache = !isServerRendering();
	  if (typeof userDef === 'function') {
		sharedPropertyDefinition.get = shouldCache
		  ? createComputedGetter(key)
		  : createGetterInvoker(userDef);
		sharedPropertyDefinition.set = noop;
	  } else {
		sharedPropertyDefinition.get = userDef.get
		  ? shouldCache && userDef.cache !== false
			? createComputedGetter(key)
			: createGetterInvoker(userDef.get)
		  : noop;
		sharedPropertyDefinition.set = userDef.set || noop;
	  }
	  if (sharedPropertyDefinition.set === noop) {
		sharedPropertyDefinition.set = function () {
		  warn(
			("Computed property \"" + key + "\" was assigned to but it has no setter."),
			this
		  );
		};
	  }
	  Object.defineProperty(target, key, sharedPropertyDefinition);
	}
  
	function createComputedGetter (key) {
	  return function computedGetter () {
		var watcher = this._computedWatchers && this._computedWatchers[key];
		if (watcher) {
		  if (watcher.dirty) {
			watcher.evaluate();
		  }
		  if (Dep.target) {
			watcher.depend();
		  }
		  return watcher.value
		}
	  }
	}
  
	function createGetterInvoker(fn) {
	  return function computedGetter () {
		return fn.call(this, this)
	  }
	}
  
	function initMethods (vm, methods) {
	  var props = vm.$options.props;
	  for (var key in methods) {
		{
		  if (typeof methods[key] !== 'function') {
			warn(
			  "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
			  "Did you reference the function correctly?",
			  vm
			);
		  }
		  if (props && hasOwn(props, key)) {
			warn(
			  ("Method \"" + key + "\" has already been defined as a prop."),
			  vm
			);
		  }
		  if ((key in vm) && isReserved(key)) {
			warn(
			  "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
			  "Avoid defining component methods that start with _ or $."
			);
		  }
		}
		vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
	  }
	}
  
	function initWatch (vm, watch) {
	  for (var key in watch) {
		var handler = watch[key];
		if (Array.isArray(handler)) {
		  for (var i = 0; i < handler.length; i++) {
			createWatcher(vm, key, handler[i]);
		  }
		} else {
		  createWatcher(vm, key, handler);
		}
	  }
	}
  
	function createWatcher (
	  vm,
	  expOrFn,
	  handler,
	  options
	) {
	  if (isPlainObject(handler)) {
		options = handler;
		handler = handler.handler;
	  }
	  if (typeof handler === 'string') {
		handler = vm[handler];
	  }
	  return vm.$watch(expOrFn, handler, options)
	}
  
	function stateMixin (Vue) {
	  // flow somehow has problems with directly declared definition object
	  // when using Object.defineProperty, so we have to procedurally build up
	  // the object here.
	  var dataDef = {};
	  dataDef.get = function () { return this._data };
	  var propsDef = {};
	  propsDef.get = function () { return this._props };
	  {
		dataDef.set = function () {
		  warn(
			'Avoid replacing instance root $data. ' +
			'Use nested data properties instead.',
			this
		  );
		};
		propsDef.set = function () {
		  warn("$props is readonly.", this);
		};
	  }
	  Object.defineProperty(Vue.prototype, '$data', dataDef);
	  Object.defineProperty(Vue.prototype, '$props', propsDef);
  
	  Vue.prototype.$set = set;
	  Vue.prototype.$delete = del;
  
	  Vue.prototype.$watch = function (
		expOrFn,
		cb,
		options
	  ) {
		var vm = this;
		if (isPlainObject(cb)) {
		  return createWatcher(vm, expOrFn, cb, options)
		}
		options = options || {};
		options.user = true;
		var watcher = new Watcher(vm, expOrFn, cb, options);
		if (options.immediate) {
		  var info = "callback for immediate watcher \"" + (watcher.expression) + "\"";
		  pushTarget();
		  invokeWithErrorHandling(cb, vm, [watcher.value], vm, info);
		  popTarget();
		}
		return function unwatchFn () {
		  watcher.teardown();
		}
	  };
	}
  
	/*  */
  
	var uid$3 = 0;
  
	function initMixin (Vue) {
	  Vue.prototype._init = function (options) {
		var vm = this;
		// a uid
		vm._uid = uid$3++;
  
		var startTag, endTag;
		/* istanbul ignore if */
		if (config.performance && mark) {
		  startTag = "vue-perf-start:" + (vm._uid);
		  endTag = "vue-perf-end:" + (vm._uid);
		  mark(startTag);
		}
  
		// a flag to avoid this being observed
		vm._isVue = true;
		// merge options
		if (options && options._isComponent) {
		  // optimize internal component instantiation
		  // since dynamic options merging is pretty slow, and none of the
		  // internal component options needs special treatment.
		  initInternalComponent(vm, options);
		} else {
		  vm.$options = mergeOptions(
			resolveConstructorOptions(vm.constructor),
			options || {},
			vm
		  );
		}
		/* istanbul ignore else */
		{
		  initProxy(vm);
		}
		// expose real self
		vm._self = vm;
		initLifecycle(vm);
		initEvents(vm);
		initRender(vm);
		callHook(vm, 'beforeCreate');
		initInjections(vm); // resolve injections before data/props
		initState(vm);
		initProvide(vm); // resolve provide after data/props
		callHook(vm, 'created');
  
		/* istanbul ignore if */
		if (config.performance && mark) {
		  vm._name = formatComponentName(vm, false);
		  mark(endTag);
		  measure(("vue " + (vm._name) + " init"), startTag, endTag);
		}
  
		if (vm.$options.el) {
		  vm.$mount(vm.$options.el);
		}
	  };
	}
  
	function initInternalComponent (vm, options) {
	  var opts = vm.$options = Object.create(vm.constructor.options);
	  // doing this because it's faster than dynamic enumeration.
	  var parentVnode = options._parentVnode;
	  opts.parent = options.parent;
	  opts._parentVnode = parentVnode;
  
	  var vnodeComponentOptions = parentVnode.componentOptions;
	  opts.propsData = vnodeComponentOptions.propsData;
	  opts._parentListeners = vnodeComponentOptions.listeners;
	  opts._renderChildren = vnodeComponentOptions.children;
	  opts._componentTag = vnodeComponentOptions.tag;
  
	  if (options.render) {
		opts.render = options.render;
		opts.staticRenderFns = options.staticRenderFns;
	  }
	}
  
	function resolveConstructorOptions (Ctor) {
	  var options = Ctor.options;
	  if (Ctor.super) {
		var superOptions = resolveConstructorOptions(Ctor.super);
		var cachedSuperOptions = Ctor.superOptions;
		if (superOptions !== cachedSuperOptions) {
		  // super option changed,
		  // need to resolve new options.
		  Ctor.superOptions = superOptions;
		  // check if there are any late-modified/attached options (#4976)
		  var modifiedOptions = resolveModifiedOptions(Ctor);
		  // update base extend options
		  if (modifiedOptions) {
			extend(Ctor.extendOptions, modifiedOptions);
		  }
		  options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
		  if (options.name) {
			options.components[options.name] = Ctor;
		  }
		}
	  }
	  return options
	}
  
	function resolveModifiedOptions (Ctor) {
	  var modified;
	  var latest = Ctor.options;
	  var sealed = Ctor.sealedOptions;
	  for (var key in latest) {
		if (latest[key] !== sealed[key]) {
		  if (!modified) { modified = {}; }
		  modified[key] = latest[key];
		}
	  }
	  return modified
	}
  
	function Vue (options) {
	  if (!(this instanceof Vue)
	  ) {
		warn('Vue is a constructor and should be called with the `new` keyword');
	  }
	  this._init(options);
	}
  
	initMixin(Vue);
	stateMixin(Vue);
	eventsMixin(Vue);
	lifecycleMixin(Vue);
	renderMixin(Vue);
  
	/*  */
  
	function initUse (Vue) {
	  Vue.use = function (plugin) {
		var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
		if (installedPlugins.indexOf(plugin) > -1) {
		  return this
		}
  
		// additional parameters
		var args = toArray(arguments, 1);
		args.unshift(this);
		if (typeof plugin.install === 'function') {
		  plugin.install.apply(plugin, args);
		} else if (typeof plugin === 'function') {
		  plugin.apply(null, args);
		}
		installedPlugins.push(plugin);
		return this
	  };
	}
  
	/*  */
  
	function initMixin$1 (Vue) {
	  Vue.mixin = function (mixin) {
		this.options = mergeOptions(this.options, mixin);
		return this
	  };
	}
  
	/*  */
  
	function initExtend (Vue) {
	  /**
	   * Each instance constructor, including Vue, has a unique
	   * cid. This enables us to create wrapped "child
	   * constructors" for prototypal inheritance and cache them.
	   */
	  Vue.cid = 0;
	  var cid = 1;
  
	  /**
	   * Class inheritance
	   */
	  Vue.extend = function (extendOptions) {
		extendOptions = extendOptions || {};
		var Super = this;
		var SuperId = Super.cid;
		var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
		if (cachedCtors[SuperId]) {
		  return cachedCtors[SuperId]
		}
  
		var name = extendOptions.name || Super.options.name;
		if (name) {
		  validateComponentName(name);
		}
  
		var Sub = function VueComponent (options) {
		  this._init(options);
		};
		Sub.prototype = Object.create(Super.prototype);
		Sub.prototype.constructor = Sub;
		Sub.cid = cid++;
		Sub.options = mergeOptions(
		  Super.options,
		  extendOptions
		);
		Sub['super'] = Super;
  
		// For props and computed properties, we define the proxy getters on
		// the Vue instances at extension time, on the extended prototype. This
		// avoids Object.defineProperty calls for each instance created.
		if (Sub.options.props) {
		  initProps$1(Sub);
		}
		if (Sub.options.computed) {
		  initComputed$1(Sub);
		}
  
		// allow further extension/mixin/plugin usage
		Sub.extend = Super.extend;
		Sub.mixin = Super.mixin;
		Sub.use = Super.use;
  
		// create asset registers, so extended classes
		// can have their private assets too.
		ASSET_TYPES.forEach(function (type) {
		  Sub[type] = Super[type];
		});
		// enable recursive self-lookup
		if (name) {
		  Sub.options.components[name] = Sub;
		}
  
		// keep a reference to the super options at extension time.
		// later at instantiation we can check if Super's options have
		// been updated.
		Sub.superOptions = Super.options;
		Sub.extendOptions = extendOptions;
		Sub.sealedOptions = extend({}, Sub.options);
  
		// cache constructor
		cachedCtors[SuperId] = Sub;
		return Sub
	  };
	}
  
	function initProps$1 (Comp) {
	  var props = Comp.options.props;
	  for (var key in props) {
		proxy(Comp.prototype, "_props", key);
	  }
	}
  
	function initComputed$1 (Comp) {
	  var computed = Comp.options.computed;
	  for (var key in computed) {
		defineComputed(Comp.prototype, key, computed[key]);
	  }
	}
  
	/*  */
  
	function initAssetRegisters (Vue) {
	  /**
	   * Create asset registration methods.
	   */
	  ASSET_TYPES.forEach(function (type) {
		Vue[type] = function (
		  id,
		  definition
		) {
		  if (!definition) {
			return this.options[type + 's'][id]
		  } else {
			/* istanbul ignore if */
			if (type === 'component') {
			  validateComponentName(id);
			}
			if (type === 'component' && isPlainObject(definition)) {
			  definition.name = definition.name || id;
			  definition = this.options._base.extend(definition);
			}
			if (type === 'directive' && typeof definition === 'function') {
			  definition = { bind: definition, update: definition };
			}
			this.options[type + 's'][id] = definition;
			return definition
		  }
		};
	  });
	}
  
	/*  */
  
  
  
  
  
	function getComponentName (opts) {
	  return opts && (opts.Ctor.options.name || opts.tag)
	}
  
	function matches (pattern, name) {
	  if (Array.isArray(pattern)) {
		return pattern.indexOf(name) > -1
	  } else if (typeof pattern === 'string') {
		return pattern.split(',').indexOf(name) > -1
	  } else if (isRegExp(pattern)) {
		return pattern.test(name)
	  }
	  /* istanbul ignore next */
	  return false
	}
  
	function pruneCache (keepAliveInstance, filter) {
	  var cache = keepAliveInstance.cache;
	  var keys = keepAliveInstance.keys;
	  var _vnode = keepAliveInstance._vnode;
	  for (var key in cache) {
		var entry = cache[key];
		if (entry) {
		  var name = entry.name;
		  if (name && !filter(name)) {
			pruneCacheEntry(cache, key, keys, _vnode);
		  }
		}
	  }
	}
  
	function pruneCacheEntry (
	  cache,
	  key,
	  keys,
	  current
	) {
	  var entry = cache[key];
	  if (entry && (!current || entry.tag !== current.tag)) {
		entry.componentInstance.$destroy();
	  }
	  cache[key] = null;
	  remove(keys, key);
	}
  
	var patternTypes = [String, RegExp, Array];
  
	var KeepAlive = {
	  name: 'keep-alive',
	  abstract: true,
  
	  props: {
		include: patternTypes,
		exclude: patternTypes,
		max: [String, Number]
	  },
  
	  methods: {
		cacheVNode: function cacheVNode() {
		  var ref = this;
		  var cache = ref.cache;
		  var keys = ref.keys;
		  var vnodeToCache = ref.vnodeToCache;
		  var keyToCache = ref.keyToCache;
		  if (vnodeToCache) {
			var tag = vnodeToCache.tag;
			var componentInstance = vnodeToCache.componentInstance;
			var componentOptions = vnodeToCache.componentOptions;
			cache[keyToCache] = {
			  name: getComponentName(componentOptions),
			  tag: tag,
			  componentInstance: componentInstance,
			};
			keys.push(keyToCache);
			// prune oldest entry
			if (this.max && keys.length > parseInt(this.max)) {
			  pruneCacheEntry(cache, keys[0], keys, this._vnode);
			}
			this.vnodeToCache = null;
		  }
		}
	  },
  
	  created: function created () {
		this.cache = Object.create(null);
		this.keys = [];
	  },
  
	  destroyed: function destroyed () {
		for (var key in this.cache) {
		  pruneCacheEntry(this.cache, key, this.keys);
		}
	  },
  
	  mounted: function mounted () {
		var this$1 = this;
  
		this.cacheVNode();
		this.$watch('include', function (val) {
		  pruneCache(this$1, function (name) { return matches(val, name); });
		});
		this.$watch('exclude', function (val) {
		  pruneCache(this$1, function (name) { return !matches(val, name); });
		});
	  },
  
	  updated: function updated () {
		this.cacheVNode();
	  },
  
	  render: function render () {
		var slot = this.$slots.default;
		var vnode = getFirstComponentChild(slot);
		var componentOptions = vnode && vnode.componentOptions;
		if (componentOptions) {
		  // check pattern
		  var name = getComponentName(componentOptions);
		  var ref = this;
		  var include = ref.include;
		  var exclude = ref.exclude;
		  if (
			// not included
			(include && (!name || !matches(include, name))) ||
			// excluded
			(exclude && name && matches(exclude, name))
		  ) {
			return vnode
		  }
  
		  var ref$1 = this;
		  var cache = ref$1.cache;
		  var keys = ref$1.keys;
		  var key = vnode.key == null
			// same constructor may get registered as different local components
			// so cid alone is not enough (#3269)
			? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
			: vnode.key;
		  if (cache[key]) {
			vnode.componentInstance = cache[key].componentInstance;
			// make current key freshest
			remove(keys, key);
			keys.push(key);
		  } else {
			// delay setting the cache until update
			this.vnodeToCache = vnode;
			this.keyToCache = key;
		  }
  
		  vnode.data.keepAlive = true;
		}
		return vnode || (slot && slot[0])
	  }
	};
  
	var builtInComponents = {
	  KeepAlive: KeepAlive
	};
  
	/*  */
  
	function initGlobalAPI (Vue) {
	  // config
	  var configDef = {};
	  configDef.get = function () { return config; };
	  {
		configDef.set = function () {
		  warn(
			'Do not replace the Vue.config object, set individual fields instead.'
		  );
		};
	  }
	  Object.defineProperty(Vue, 'config', configDef);
  
	  // exposed util methods.
	  // NOTE: these are not considered part of the public API - avoid relying on
	  // them unless you are aware of the risk.
	  Vue.util = {
		warn: warn,
		extend: extend,
		mergeOptions: mergeOptions,
		defineReactive: defineReactive$$1
	  };
  
	  Vue.set = set;
	  Vue.delete = del;
	  Vue.nextTick = nextTick;
  
	  // 2.6 explicit observable API
	  Vue.observable = function (obj) {
		observe(obj);
		return obj
	  };
  
	  Vue.options = Object.create(null);
	  ASSET_TYPES.forEach(function (type) {
		Vue.options[type + 's'] = Object.create(null);
	  });
  
	  // this is used to identify the "base" constructor to extend all plain-object
	  // components with in Weex's multi-instance scenarios.
	  Vue.options._base = Vue;
  
	  extend(Vue.options.components, builtInComponents);
  
	  initUse(Vue);
	  initMixin$1(Vue);
	  initExtend(Vue);
	  initAssetRegisters(Vue);
	}
  
	initGlobalAPI(Vue);
  
	Object.defineProperty(Vue.prototype, '$isServer', {
	  get: isServerRendering
	});
  
	Object.defineProperty(Vue.prototype, '$ssrContext', {
	  get: function get () {
		/* istanbul ignore next */
		return this.$vnode && this.$vnode.ssrContext
	  }
	});
  
	// expose FunctionalRenderContext for ssr runtime helper installation
	Object.defineProperty(Vue, 'FunctionalRenderContext', {
	  value: FunctionalRenderContext
	});
  
	Vue.version = '2.6.14';
  
	/*  */
  
	// these are reserved for web because they are directly compiled away
	// during template compilation
	var isReservedAttr = makeMap('style,class');
  
	// attributes that should be using props for binding
	var acceptValue = makeMap('input,textarea,option,select,progress');
	var mustUseProp = function (tag, type, attr) {
	  return (
		(attr === 'value' && acceptValue(tag)) && type !== 'button' ||
		(attr === 'selected' && tag === 'option') ||
		(attr === 'checked' && tag === 'input') ||
		(attr === 'muted' && tag === 'video')
	  )
	};
  
	var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
  
	var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
  
	var convertEnumeratedValue = function (key, value) {
	  return isFalsyAttrValue(value) || value === 'false'
		? 'false'
		// allow arbitrary string value for contenteditable
		: key === 'contenteditable' && isValidContentEditableValue(value)
		  ? value
		  : 'true'
	};
  
	var isBooleanAttr = makeMap(
	  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
	  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
	  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
	  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
	  'required,reversed,scoped,seamless,selected,sortable,' +
	  'truespeed,typemustmatch,visible'
	);
  
	var xlinkNS = 'http://www.w3.org/1999/xlink';
  
	var isXlink = function (name) {
	  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
	};
  
	var getXlinkProp = function (name) {
	  return isXlink(name) ? name.slice(6, name.length) : ''
	};
  
	var isFalsyAttrValue = function (val) {
	  return val == null || val === false
	};
  
	/*  */
  
	function genClassForVnode (vnode) {
	  var data = vnode.data;
	  var parentNode = vnode;
	  var childNode = vnode;
	  while (isDef(childNode.componentInstance)) {
		childNode = childNode.componentInstance._vnode;
		if (childNode && childNode.data) {
		  data = mergeClassData(childNode.data, data);
		}
	  }
	  while (isDef(parentNode = parentNode.parent)) {
		if (parentNode && parentNode.data) {
		  data = mergeClassData(data, parentNode.data);
		}
	  }
	  return renderClass(data.staticClass, data.class)
	}
  
	function mergeClassData (child, parent) {
	  return {
		staticClass: concat(child.staticClass, parent.staticClass),
		class: isDef(child.class)
		  ? [child.class, parent.class]
		  : parent.class
	  }
	}
  
	function renderClass (
	  staticClass,
	  dynamicClass
	) {
	  if (isDef(staticClass) || isDef(dynamicClass)) {
		return concat(staticClass, stringifyClass(dynamicClass))
	  }
	  /* istanbul ignore next */
	  return ''
	}
  
	function concat (a, b) {
	  return a ? b ? (a + ' ' + b) : a : (b || '')
	}
  
	function stringifyClass (value) {
	  if (Array.isArray(value)) {
		return stringifyArray(value)
	  }
	  if (isObject(value)) {
		return stringifyObject(value)
	  }
	  if (typeof value === 'string') {
		return value
	  }
	  /* istanbul ignore next */
	  return ''
	}
  
	function stringifyArray (value) {
	  var res = '';
	  var stringified;
	  for (var i = 0, l = value.length; i < l; i++) {
		if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
		  if (res) { res += ' '; }
		  res += stringified;
		}
	  }
	  return res
	}
  
	function stringifyObject (value) {
	  var res = '';
	  for (var key in value) {
		if (value[key]) {
		  if (res) { res += ' '; }
		  res += key;
		}
	  }
	  return res
	}
  
	/*  */
  
	var namespaceMap = {
	  svg: 'http://www.w3.org/2000/svg',
	  math: 'http://www.w3.org/1998/Math/MathML'
	};
  
	var isHTMLTag = makeMap(
	  'html,body,base,head,link,meta,style,title,' +
	  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
	  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
	  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
	  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
	  'embed,object,param,source,canvas,script,noscript,del,ins,' +
	  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
	  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
	  'output,progress,select,textarea,' +
	  'details,dialog,menu,menuitem,summary,' +
	  'content,element,shadow,template,blockquote,iframe,tfoot'
	);
  
	// this map is intentionally selective, only covering SVG elements that may
	// contain child elements.
	var isSVG = makeMap(
	  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
	  'foreignobject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
	  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
	  true
	);
  
	var isPreTag = function (tag) { return tag === 'pre'; };
  
	var isReservedTag = function (tag) {
	  return isHTMLTag(tag) || isSVG(tag)
	};
  
	function getTagNamespace (tag) {
	  if (isSVG(tag)) {
		return 'svg'
	  }
	  // basic support for MathML
	  // note it doesn't support other MathML elements being component roots
	  if (tag === 'math') {
		return 'math'
	  }
	}
  
	var unknownElementCache = Object.create(null);
	function isUnknownElement (tag) {
	  /* istanbul ignore if */
	  if (!inBrowser) {
		return true
	  }
	  if (isReservedTag(tag)) {
		return false
	  }
	  tag = tag.toLowerCase();
	  /* istanbul ignore if */
	  if (unknownElementCache[tag] != null) {
		return unknownElementCache[tag]
	  }
	  var el = document.createElement(tag);
	  if (tag.indexOf('-') > -1) {
		// http://stackoverflow.com/a/28210364/1070244
		return (unknownElementCache[tag] = (
		  el.constructor === window.HTMLUnknownElement ||
		  el.constructor === window.HTMLElement
		))
	  } else {
		return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
	  }
	}
  
	var isTextInputType = makeMap('text,number,password,search,email,tel,url');
  
	/*  */
  
	/**
	 * Query an element selector if it's not an element already.
	 */
	function query (el) {
	  if (typeof el === 'string') {
		var selected = document.querySelector(el);
		if (!selected) {
		  warn(
			'Cannot find element: ' + el
		  );
		  return document.createElement('div')
		}
		return selected
	  } else {
		return el
	  }
	}
  
	/*  */
  
	function createElement$1 (tagName, vnode) {
	  var elm = document.createElement(tagName);
	  if (tagName !== 'select') {
		return elm
	  }
	  // false or null will remove the attribute but undefined will not
	  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
		elm.setAttribute('multiple', 'multiple');
	  }
	  return elm
	}
  
	function createElementNS (namespace, tagName) {
	  return document.createElementNS(namespaceMap[namespace], tagName)
	}
  
	function createTextNode (text) {
	  return document.createTextNode(text)
	}
  
	function createComment (text) {
	  return document.createComment(text)
	}
  
	function insertBefore (parentNode, newNode, referenceNode) {
	  parentNode.insertBefore(newNode, referenceNode);
	}
  
	function removeChild (node, child) {
	  node.removeChild(child);
	}
  
	function appendChild (node, child) {
	  node.appendChild(child);
	}
  
	function parentNode (node) {
	  return node.parentNode
	}
  
	function nextSibling (node) {
	  return node.nextSibling
	}
  
	function tagName (node) {
	  return node.tagName
	}
  
	function setTextContent (node, text) {
	  node.textContent = text;
	}
  
	function setStyleScope (node, scopeId) {
	  node.setAttribute(scopeId, '');
	}
  
	var nodeOps = /*#__PURE__*/Object.freeze({
	  createElement: createElement$1,
	  createElementNS: createElementNS,
	  createTextNode: createTextNode,
	  createComment: createComment,
	  insertBefore: insertBefore,
	  removeChild: removeChild,
	  appendChild: appendChild,
	  parentNode: parentNode,
	  nextSibling: nextSibling,
	  tagName: tagName,
	  setTextContent: setTextContent,
	  setStyleScope: setStyleScope
	});
  
	/*  */
  
	var ref = {
	  create: function create (_, vnode) {
		registerRef(vnode);
	  },
	  update: function update (oldVnode, vnode) {
		if (oldVnode.data.ref !== vnode.data.ref) {
		  registerRef(oldVnode, true);
		  registerRef(vnode);
		}
	  },
	  destroy: function destroy (vnode) {
		registerRef(vnode, true);
	  }
	};
  
	function registerRef (vnode, isRemoval) {
	  var key = vnode.data.ref;
	  if (!isDef(key)) { return }
  
	  var vm = vnode.context;
	  var ref = vnode.componentInstance || vnode.elm;
	  var refs = vm.$refs;
	  if (isRemoval) {
		if (Array.isArray(refs[key])) {
		  remove(refs[key], ref);
		} else if (refs[key] === ref) {
		  refs[key] = undefined;
		}
	  } else {
		if (vnode.data.refInFor) {
		  if (!Array.isArray(refs[key])) {
			refs[key] = [ref];
		  } else if (refs[key].indexOf(ref) < 0) {
			// $flow-disable-line
			refs[key].push(ref);
		  }
		} else {
		  refs[key] = ref;
		}
	  }
	}
  
	/**
	 * Virtual DOM patching algorithm based on Snabbdom by
	 * Simon Friis Vindum (@paldepind)
	 * Licensed under the MIT License
	 * https://github.com/paldepind/snabbdom/blob/master/LICENSE
	 *
	 * modified by Evan You (@yyx990803)
	 *
	 * Not type-checking this because this file is perf-critical and the cost
	 * of making flow understand it is not worth it.
	 */
  
	var emptyNode = new VNode('', {}, []);
  
	var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
  
	function sameVnode (a, b) {
	  return (
		a.key === b.key &&
		a.asyncFactory === b.asyncFactory && (
		  (
			a.tag === b.tag &&
			a.isComment === b.isComment &&
			isDef(a.data) === isDef(b.data) &&
			sameInputType(a, b)
		  ) || (
			isTrue(a.isAsyncPlaceholder) &&
			isUndef(b.asyncFactory.error)
		  )
		)
	  )
	}
  
	function sameInputType (a, b) {
	  if (a.tag !== 'input') { return true }
	  var i;
	  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
	  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
	  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
	}
  
	function createKeyToOldIdx (children, beginIdx, endIdx) {
	  var i, key;
	  var map = {};
	  for (i = beginIdx; i <= endIdx; ++i) {
		key = children[i].key;
		if (isDef(key)) { map[key] = i; }
	  }
	  return map
	}
  
	function createPatchFunction (backend) {
	  var i, j;
	  var cbs = {};
  
	  var modules = backend.modules;
	  var nodeOps = backend.nodeOps;
  
	  for (i = 0; i < hooks.length; ++i) {
		cbs[hooks[i]] = [];
		for (j = 0; j < modules.length; ++j) {
		  if (isDef(modules[j][hooks[i]])) {
			cbs[hooks[i]].push(modules[j][hooks[i]]);
		  }
		}
	  }
  
	  function emptyNodeAt (elm) {
		return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
	  }
  
	  function createRmCb (childElm, listeners) {
		function remove$$1 () {
		  if (--remove$$1.listeners === 0) {
			removeNode(childElm);
		  }
		}
		remove$$1.listeners = listeners;
		return remove$$1
	  }
  
	  function removeNode (el) {
		var parent = nodeOps.parentNode(el);
		// element may have already been removed due to v-html / v-text
		if (isDef(parent)) {
		  nodeOps.removeChild(parent, el);
		}
	  }
  
	  function isUnknownElement$$1 (vnode, inVPre) {
		return (
		  !inVPre &&
		  !vnode.ns &&
		  !(
			config.ignoredElements.length &&
			config.ignoredElements.some(function (ignore) {
			  return isRegExp(ignore)
				? ignore.test(vnode.tag)
				: ignore === vnode.tag
			})
		  ) &&
		  config.isUnknownElement(vnode.tag)
		)
	  }
  
	  var creatingElmInVPre = 0;
  
	  function createElm (
		vnode,
		insertedVnodeQueue,
		parentElm,
		refElm,
		nested,
		ownerArray,
		index
	  ) {
		if (isDef(vnode.elm) && isDef(ownerArray)) {
		  // This vnode was used in a previous render!
		  // now it's used as a new node, overwriting its elm would cause
		  // potential patch errors down the road when it's used as an insertion
		  // reference node. Instead, we clone the node on-demand before creating
		  // associated DOM element for it.
		  vnode = ownerArray[index] = cloneVNode(vnode);
		}
  
		vnode.isRootInsert = !nested; // for transition enter check
		if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
		  return
		}
  
		var data = vnode.data;
		var children = vnode.children;
		var tag = vnode.tag;
		if (isDef(tag)) {
		  {
			if (data && data.pre) {
			  creatingElmInVPre++;
			}
			if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
			  warn(
				'Unknown custom element: <' + tag + '> - did you ' +
				'register the component correctly? For recursive components, ' +
				'make sure to provide the "name" option.',
				vnode.context
			  );
			}
		  }
  
		  vnode.elm = vnode.ns
			? nodeOps.createElementNS(vnode.ns, tag)
			: nodeOps.createElement(tag, vnode);
		  setScope(vnode);
  
		  /* istanbul ignore if */
		  {
			createChildren(vnode, children, insertedVnodeQueue);
			if (isDef(data)) {
			  invokeCreateHooks(vnode, insertedVnodeQueue);
			}
			insert(parentElm, vnode.elm, refElm);
		  }
  
		  if (data && data.pre) {
			creatingElmInVPre--;
		  }
		} else if (isTrue(vnode.isComment)) {
		  vnode.elm = nodeOps.createComment(vnode.text);
		  insert(parentElm, vnode.elm, refElm);
		} else {
		  vnode.elm = nodeOps.createTextNode(vnode.text);
		  insert(parentElm, vnode.elm, refElm);
		}
	  }
  
	  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
		var i = vnode.data;
		if (isDef(i)) {
		  var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
		  if (isDef(i = i.hook) && isDef(i = i.init)) {
			i(vnode, false /* hydrating */);
		  }
		  // after calling the init hook, if the vnode is a child component
		  // it should've created a child instance and mounted it. the child
		  // component also has set the placeholder vnode's elm.
		  // in that case we can just return the element and be done.
		  if (isDef(vnode.componentInstance)) {
			initComponent(vnode, insertedVnodeQueue);
			insert(parentElm, vnode.elm, refElm);
			if (isTrue(isReactivated)) {
			  reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
			}
			return true
		  }
		}
	  }
  
	  function initComponent (vnode, insertedVnodeQueue) {
		if (isDef(vnode.data.pendingInsert)) {
		  insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
		  vnode.data.pendingInsert = null;
		}
		vnode.elm = vnode.componentInstance.$el;
		if (isPatchable(vnode)) {
		  invokeCreateHooks(vnode, insertedVnodeQueue);
		  setScope(vnode);
		} else {
		  // empty component root.
		  // skip all element-related modules except for ref (#3455)
		  registerRef(vnode);
		  // make sure to invoke the insert hook
		  insertedVnodeQueue.push(vnode);
		}
	  }
  
	  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
		var i;
		// hack for #4339: a reactivated component with inner transition
		// does not trigger because the inner node's created hooks are not called
		// again. It's not ideal to involve module-specific logic in here but
		// there doesn't seem to be a better way to do it.
		var innerNode = vnode;
		while (innerNode.componentInstance) {
		  innerNode = innerNode.componentInstance._vnode;
		  if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
			for (i = 0; i < cbs.activate.length; ++i) {
			  cbs.activate[i](emptyNode, innerNode);
			}
			insertedVnodeQueue.push(innerNode);
			break
		  }
		}
		// unlike a newly created component,
		// a reactivated keep-alive component doesn't insert itself
		insert(parentElm, vnode.elm, refElm);
	  }
  
	  function insert (parent, elm, ref$$1) {
		if (isDef(parent)) {
		  if (isDef(ref$$1)) {
			if (nodeOps.parentNode(ref$$1) === parent) {
			  nodeOps.insertBefore(parent, elm, ref$$1);
			}
		  } else {
			nodeOps.appendChild(parent, elm);
		  }
		}
	  }
  
	  function createChildren (vnode, children, insertedVnodeQueue) {
		if (Array.isArray(children)) {
		  {
			checkDuplicateKeys(children);
		  }
		  for (var i = 0; i < children.length; ++i) {
			createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
		  }
		} else if (isPrimitive(vnode.text)) {
		  nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
		}
	  }
  
	  function isPatchable (vnode) {
		while (vnode.componentInstance) {
		  vnode = vnode.componentInstance._vnode;
		}
		return isDef(vnode.tag)
	  }
  
	  function invokeCreateHooks (vnode, insertedVnodeQueue) {
		for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
		  cbs.create[i$1](emptyNode, vnode);
		}
		i = vnode.data.hook; // Reuse variable
		if (isDef(i)) {
		  if (isDef(i.create)) { i.create(emptyNode, vnode); }
		  if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
		}
	  }
  
	  // set scope id attribute for scoped CSS.
	  // this is implemented as a special case to avoid the overhead
	  // of going through the normal attribute patching process.
	  function setScope (vnode) {
		var i;
		if (isDef(i = vnode.fnScopeId)) {
		  nodeOps.setStyleScope(vnode.elm, i);
		} else {
		  var ancestor = vnode;
		  while (ancestor) {
			if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
			  nodeOps.setStyleScope(vnode.elm, i);
			}
			ancestor = ancestor.parent;
		  }
		}
		// for slot content they should also get the scopeId from the host instance.
		if (isDef(i = activeInstance) &&
		  i !== vnode.context &&
		  i !== vnode.fnContext &&
		  isDef(i = i.$options._scopeId)
		) {
		  nodeOps.setStyleScope(vnode.elm, i);
		}
	  }
  
	  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
		for (; startIdx <= endIdx; ++startIdx) {
		  createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
		}
	  }
  
	  function invokeDestroyHook (vnode) {
		var i, j;
		var data = vnode.data;
		if (isDef(data)) {
		  if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
		  for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
		}
		if (isDef(i = vnode.children)) {
		  for (j = 0; j < vnode.children.length; ++j) {
			invokeDestroyHook(vnode.children[j]);
		  }
		}
	  }
  
	  function removeVnodes (vnodes, startIdx, endIdx) {
		for (; startIdx <= endIdx; ++startIdx) {
		  var ch = vnodes[startIdx];
		  if (isDef(ch)) {
			if (isDef(ch.tag)) {
			  removeAndInvokeRemoveHook(ch);
			  invokeDestroyHook(ch);
			} else { // Text node
			  removeNode(ch.elm);
			}
		  }
		}
	  }
  
	  function removeAndInvokeRemoveHook (vnode, rm) {
		if (isDef(rm) || isDef(vnode.data)) {
		  var i;
		  var listeners = cbs.remove.length + 1;
		  if (isDef(rm)) {
			// we have a recursively passed down rm callback
			// increase the listeners count
			rm.listeners += listeners;
		  } else {
			// directly removing
			rm = createRmCb(vnode.elm, listeners);
		  }
		  // recursively invoke hooks on child component root node
		  if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
			removeAndInvokeRemoveHook(i, rm);
		  }
		  for (i = 0; i < cbs.remove.length; ++i) {
			cbs.remove[i](vnode, rm);
		  }
		  if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
			i(vnode, rm);
		  } else {
			rm();
		  }
		} else {
		  removeNode(vnode.elm);
		}
	  }
  
	  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
		var oldStartIdx = 0;
		var newStartIdx = 0;
		var oldEndIdx = oldCh.length - 1;
		var oldStartVnode = oldCh[0];
		var oldEndVnode = oldCh[oldEndIdx];
		var newEndIdx = newCh.length - 1;
		var newStartVnode = newCh[0];
		var newEndVnode = newCh[newEndIdx];
		var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
  
		// removeOnly is a special flag used only by <transition-group>
		// to ensure removed elements stay in correct relative positions
		// during leaving transitions
		var canMove = !removeOnly;
  
		{
		  checkDuplicateKeys(newCh);
		}
  
		while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
		  if (isUndef(oldStartVnode)) {
			oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
		  } else if (isUndef(oldEndVnode)) {
			oldEndVnode = oldCh[--oldEndIdx];
		  } else if (sameVnode(oldStartVnode, newStartVnode)) {
			patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
			oldStartVnode = oldCh[++oldStartIdx];
			newStartVnode = newCh[++newStartIdx];
		  } else if (sameVnode(oldEndVnode, newEndVnode)) {
			patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
			oldEndVnode = oldCh[--oldEndIdx];
			newEndVnode = newCh[--newEndIdx];
		  } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
			patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
			canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
			oldStartVnode = oldCh[++oldStartIdx];
			newEndVnode = newCh[--newEndIdx];
		  } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
			patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
			canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
			oldEndVnode = oldCh[--oldEndIdx];
			newStartVnode = newCh[++newStartIdx];
		  } else {
			if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
			idxInOld = isDef(newStartVnode.key)
			  ? oldKeyToIdx[newStartVnode.key]
			  : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
			if (isUndef(idxInOld)) { // New element
			  createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
			} else {
			  vnodeToMove = oldCh[idxInOld];
			  if (sameVnode(vnodeToMove, newStartVnode)) {
				patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
				oldCh[idxInOld] = undefined;
				canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
			  } else {
				// same key but different element. treat as new element
				createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
			  }
			}
			newStartVnode = newCh[++newStartIdx];
		  }
		}
		if (oldStartIdx > oldEndIdx) {
		  refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
		  addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
		} else if (newStartIdx > newEndIdx) {
		  removeVnodes(oldCh, oldStartIdx, oldEndIdx);
		}
	  }
  
	  function checkDuplicateKeys (children) {
		var seenKeys = {};
		for (var i = 0; i < children.length; i++) {
		  var vnode = children[i];
		  var key = vnode.key;
		  if (isDef(key)) {
			if (seenKeys[key]) {
			  warn(
				("Duplicate keys detected: '" + key + "'. This may cause an update error."),
				vnode.context
			  );
			} else {
			  seenKeys[key] = true;
			}
		  }
		}
	  }
  
	  function findIdxInOld (node, oldCh, start, end) {
		for (var i = start; i < end; i++) {
		  var c = oldCh[i];
		  if (isDef(c) && sameVnode(node, c)) { return i }
		}
	  }
  
	  function patchVnode (
		oldVnode,
		vnode,
		insertedVnodeQueue,
		ownerArray,
		index,
		removeOnly
	  ) {
		if (oldVnode === vnode) {
		  return
		}
  
		if (isDef(vnode.elm) && isDef(ownerArray)) {
		  // clone reused vnode
		  vnode = ownerArray[index] = cloneVNode(vnode);
		}
  
		var elm = vnode.elm = oldVnode.elm;
  
		if (isTrue(oldVnode.isAsyncPlaceholder)) {
		  if (isDef(vnode.asyncFactory.resolved)) {
			hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
		  } else {
			vnode.isAsyncPlaceholder = true;
		  }
		  return
		}
  
		// reuse element for static trees.
		// note we only do this if the vnode is cloned -
		// if the new node is not cloned it means the render functions have been
		// reset by the hot-reload-api and we need to do a proper re-render.
		if (isTrue(vnode.isStatic) &&
		  isTrue(oldVnode.isStatic) &&
		  vnode.key === oldVnode.key &&
		  (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
		) {
		  vnode.componentInstance = oldVnode.componentInstance;
		  return
		}
  
		var i;
		var data = vnode.data;
		if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
		  i(oldVnode, vnode);
		}
  
		var oldCh = oldVnode.children;
		var ch = vnode.children;
		if (isDef(data) && isPatchable(vnode)) {
		  for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
		  if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
		}
		if (isUndef(vnode.text)) {
		  if (isDef(oldCh) && isDef(ch)) {
			if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
		  } else if (isDef(ch)) {
			{
			  checkDuplicateKeys(ch);
			}
			if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
			addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
		  } else if (isDef(oldCh)) {
			removeVnodes(oldCh, 0, oldCh.length - 1);
		  } else if (isDef(oldVnode.text)) {
			nodeOps.setTextContent(elm, '');
		  }
		} else if (oldVnode.text !== vnode.text) {
		  nodeOps.setTextContent(elm, vnode.text);
		}
		if (isDef(data)) {
		  if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
		}
	  }
  
	  function invokeInsertHook (vnode, queue, initial) {
		// delay insert hooks for component root nodes, invoke them after the
		// element is really inserted
		if (isTrue(initial) && isDef(vnode.parent)) {
		  vnode.parent.data.pendingInsert = queue;
		} else {
		  for (var i = 0; i < queue.length; ++i) {
			queue[i].data.hook.insert(queue[i]);
		  }
		}
	  }
  
	  var hydrationBailed = false;
	  // list of modules that can skip create hook during hydration because they
	  // are already rendered on the client or has no need for initialization
	  // Note: style is excluded because it relies on initial clone for future
	  // deep updates (#7063).
	  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
  
	  // Note: this is a browser-only function so we can assume elms are DOM nodes.
	  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
		var i;
		var tag = vnode.tag;
		var data = vnode.data;
		var children = vnode.children;
		inVPre = inVPre || (data && data.pre);
		vnode.elm = elm;
  
		if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
		  vnode.isAsyncPlaceholder = true;
		  return true
		}
		// assert node match
		{
		  if (!assertNodeMatch(elm, vnode, inVPre)) {
			return false
		  }
		}
		if (isDef(data)) {
		  if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
		  if (isDef(i = vnode.componentInstance)) {
			// child component. it should have hydrated its own tree.
			initComponent(vnode, insertedVnodeQueue);
			return true
		  }
		}
		if (isDef(tag)) {
		  if (isDef(children)) {
			// empty element, allow client to pick up and populate children
			if (!elm.hasChildNodes()) {
			  createChildren(vnode, children, insertedVnodeQueue);
			} else {
			  // v-html and domProps: innerHTML
			  if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
				if (i !== elm.innerHTML) {
				  /* istanbul ignore if */
				  if (typeof console !== 'undefined' &&
					!hydrationBailed
				  ) {
					hydrationBailed = true;
					console.warn('Parent: ', elm);
					console.warn('server innerHTML: ', i);
					console.warn('client innerHTML: ', elm.innerHTML);
				  }
				  return false
				}
			  } else {
				// iterate and compare children lists
				var childrenMatch = true;
				var childNode = elm.firstChild;
				for (var i$1 = 0; i$1 < children.length; i$1++) {
				  if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
					childrenMatch = false;
					break
				  }
				  childNode = childNode.nextSibling;
				}
				// if childNode is not null, it means the actual childNodes list is
				// longer than the virtual children list.
				if (!childrenMatch || childNode) {
				  /* istanbul ignore if */
				  if (typeof console !== 'undefined' &&
					!hydrationBailed
				  ) {
					hydrationBailed = true;
					console.warn('Parent: ', elm);
					console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
				  }
				  return false
				}
			  }
			}
		  }
		  if (isDef(data)) {
			var fullInvoke = false;
			for (var key in data) {
			  if (!isRenderedModule(key)) {
				fullInvoke = true;
				invokeCreateHooks(vnode, insertedVnodeQueue);
				break
			  }
			}
			if (!fullInvoke && data['class']) {
			  // ensure collecting deps for deep class bindings for future updates
			  traverse(data['class']);
			}
		  }
		} else if (elm.data !== vnode.text) {
		  elm.data = vnode.text;
		}
		return true
	  }
  
	  function assertNodeMatch (node, vnode, inVPre) {
		if (isDef(vnode.tag)) {
		  return vnode.tag.indexOf('vue-component') === 0 || (
			!isUnknownElement$$1(vnode, inVPre) &&
			vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
		  )
		} else {
		  return node.nodeType === (vnode.isComment ? 8 : 3)
		}
	  }
  
	  return function patch (oldVnode, vnode, hydrating, removeOnly) {
		if (isUndef(vnode)) {
		  if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
		  return
		}
  
		var isInitialPatch = false;
		var insertedVnodeQueue = [];
  
		if (isUndef(oldVnode)) {
		  // empty mount (likely as component), create new root element
		  isInitialPatch = true;
		  createElm(vnode, insertedVnodeQueue);
		} else {
		  var isRealElement = isDef(oldVnode.nodeType);
		  if (!isRealElement && sameVnode(oldVnode, vnode)) {
			// patch existing root node
			patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
		  } else {
			if (isRealElement) {
			  // mounting to a real element
			  // check if this is server-rendered content and if we can perform
			  // a successful hydration.
			  if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
				oldVnode.removeAttribute(SSR_ATTR);
				hydrating = true;
			  }
			  if (isTrue(hydrating)) {
				if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
				  invokeInsertHook(vnode, insertedVnodeQueue, true);
				  return oldVnode
				} else {
				  warn(
					'The client-side rendered virtual DOM tree is not matching ' +
					'server-rendered content. This is likely caused by incorrect ' +
					'HTML markup, for example nesting block-level elements inside ' +
					'<p>, or missing <tbody>. Bailing hydration and performing ' +
					'full client-side render.'
				  );
				}
			  }
			  // either not server-rendered, or hydration failed.
			  // create an empty node and replace it
			  oldVnode = emptyNodeAt(oldVnode);
			}
  
			// replacing existing element
			var oldElm = oldVnode.elm;
			var parentElm = nodeOps.parentNode(oldElm);
  
			// create new node
			createElm(
			  vnode,
			  insertedVnodeQueue,
			  // extremely rare edge case: do not insert if old element is in a
			  // leaving transition. Only happens when combining transition +
			  // keep-alive + HOCs. (#4590)
			  oldElm._leaveCb ? null : parentElm,
			  nodeOps.nextSibling(oldElm)
			);
  
			// update parent placeholder node element, recursively
			if (isDef(vnode.parent)) {
			  var ancestor = vnode.parent;
			  var patchable = isPatchable(vnode);
			  while (ancestor) {
				for (var i = 0; i < cbs.destroy.length; ++i) {
				  cbs.destroy[i](ancestor);
				}
				ancestor.elm = vnode.elm;
				if (patchable) {
				  for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
					cbs.create[i$1](emptyNode, ancestor);
				  }
				  // #6513
				  // invoke insert hooks that may have been merged by create hooks.
				  // e.g. for directives that uses the "inserted" hook.
				  var insert = ancestor.data.hook.insert;
				  if (insert.merged) {
					// start at index 1 to avoid re-invoking component mounted hook
					for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
					  insert.fns[i$2]();
					}
				  }
				} else {
				  registerRef(ancestor);
				}
				ancestor = ancestor.parent;
			  }
			}
  
			// destroy old node
			if (isDef(parentElm)) {
			  removeVnodes([oldVnode], 0, 0);
			} else if (isDef(oldVnode.tag)) {
			  invokeDestroyHook(oldVnode);
			}
		  }
		}
  
		invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
		return vnode.elm
	  }
	}
  
	/*  */
  
	var directives = {
	  create: updateDirectives,
	  update: updateDirectives,
	  destroy: function unbindDirectives (vnode) {
		updateDirectives(vnode, emptyNode);
	  }
	};
  
	function updateDirectives (oldVnode, vnode) {
	  if (oldVnode.data.directives || vnode.data.directives) {
		_update(oldVnode, vnode);
	  }
	}
  
	function _update (oldVnode, vnode) {
	  var isCreate = oldVnode === emptyNode;
	  var isDestroy = vnode === emptyNode;
	  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
	  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
  
	  var dirsWithInsert = [];
	  var dirsWithPostpatch = [];
  
	  var key, oldDir, dir;
	  for (key in newDirs) {
		oldDir = oldDirs[key];
		dir = newDirs[key];
		if (!oldDir) {
		  // new directive, bind
		  callHook$1(dir, 'bind', vnode, oldVnode);
		  if (dir.def && dir.def.inserted) {
			dirsWithInsert.push(dir);
		  }
		} else {
		  // existing directive, update
		  dir.oldValue = oldDir.value;
		  dir.oldArg = oldDir.arg;
		  callHook$1(dir, 'update', vnode, oldVnode);
		  if (dir.def && dir.def.componentUpdated) {
			dirsWithPostpatch.push(dir);
		  }
		}
	  }
  
	  if (dirsWithInsert.length) {
		var callInsert = function () {
		  for (var i = 0; i < dirsWithInsert.length; i++) {
			callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
		  }
		};
		if (isCreate) {
		  mergeVNodeHook(vnode, 'insert', callInsert);
		} else {
		  callInsert();
		}
	  }
  
	  if (dirsWithPostpatch.length) {
		mergeVNodeHook(vnode, 'postpatch', function () {
		  for (var i = 0; i < dirsWithPostpatch.length; i++) {
			callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
		  }
		});
	  }
  
	  if (!isCreate) {
		for (key in oldDirs) {
		  if (!newDirs[key]) {
			// no longer present, unbind
			callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
		  }
		}
	  }
	}
  
	var emptyModifiers = Object.create(null);
  
	function normalizeDirectives$1 (
	  dirs,
	  vm
	) {
	  var res = Object.create(null);
	  if (!dirs) {
		// $flow-disable-line
		return res
	  }
	  var i, dir;
	  for (i = 0; i < dirs.length; i++) {
		dir = dirs[i];
		if (!dir.modifiers) {
		  // $flow-disable-line
		  dir.modifiers = emptyModifiers;
		}
		res[getRawDirName(dir)] = dir;
		dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
	  }
	  // $flow-disable-line
	  return res
	}
  
	function getRawDirName (dir) {
	  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
	}
  
	function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
	  var fn = dir.def && dir.def[hook];
	  if (fn) {
		try {
		  fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
		} catch (e) {
		  handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
		}
	  }
	}
  
	var baseModules = [
	  ref,
	  directives
	];
  
	/*  */
  
	function updateAttrs (oldVnode, vnode) {
	  var opts = vnode.componentOptions;
	  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
		return
	  }
	  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
		return
	  }
	  var key, cur, old;
	  var elm = vnode.elm;
	  var oldAttrs = oldVnode.data.attrs || {};
	  var attrs = vnode.data.attrs || {};
	  // clone observed objects, as the user probably wants to mutate it
	  if (isDef(attrs.__ob__)) {
		attrs = vnode.data.attrs = extend({}, attrs);
	  }
  
	  for (key in attrs) {
		cur = attrs[key];
		old = oldAttrs[key];
		if (old !== cur) {
		  setAttr(elm, key, cur, vnode.data.pre);
		}
	  }
	  // #4391: in IE9, setting type can reset value for input[type=radio]
	  // #6666: IE/Edge forces progress value down to 1 before setting a max
	  /* istanbul ignore if */
	  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
		setAttr(elm, 'value', attrs.value);
	  }
	  for (key in oldAttrs) {
		if (isUndef(attrs[key])) {
		  if (isXlink(key)) {
			elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
		  } else if (!isEnumeratedAttr(key)) {
			elm.removeAttribute(key);
		  }
		}
	  }
	}
  
	function setAttr (el, key, value, isInPre) {
	  if (isInPre || el.tagName.indexOf('-') > -1) {
		baseSetAttr(el, key, value);
	  } else if (isBooleanAttr(key)) {
		// set attribute for blank value
		// e.g. <option disabled>Select one</option>
		if (isFalsyAttrValue(value)) {
		  el.removeAttribute(key);
		} else {
		  // technically allowfullscreen is a boolean attribute for <iframe>,
		  // but Flash expects a value of "true" when used on <embed> tag
		  value = key === 'allowfullscreen' && el.tagName === 'EMBED'
			? 'true'
			: key;
		  el.setAttribute(key, value);
		}
	  } else if (isEnumeratedAttr(key)) {
		el.setAttribute(key, convertEnumeratedValue(key, value));
	  } else if (isXlink(key)) {
		if (isFalsyAttrValue(value)) {
		  el.removeAttributeNS(xlinkNS, getXlinkProp(key));
		} else {
		  el.setAttributeNS(xlinkNS, key, value);
		}
	  } else {
		baseSetAttr(el, key, value);
	  }
	}
  
	function baseSetAttr (el, key, value) {
	  if (isFalsyAttrValue(value)) {
		el.removeAttribute(key);
	  } else {
		// #7138: IE10 & 11 fires input event when setting placeholder on
		// <textarea>... block the first input event and remove the blocker
		// immediately.
		/* istanbul ignore if */
		if (
		  isIE && !isIE9 &&
		  el.tagName === 'TEXTAREA' &&
		  key === 'placeholder' && value !== '' && !el.__ieph
		) {
		  var blocker = function (e) {
			e.stopImmediatePropagation();
			el.removeEventListener('input', blocker);
		  };
		  el.addEventListener('input', blocker);
		  // $flow-disable-line
		  el.__ieph = true; /* IE placeholder patched */
		}
		el.setAttribute(key, value);
	  }
	}
  
	var attrs = {
	  create: updateAttrs,
	  update: updateAttrs
	};
  
	/*  */
  
	function updateClass (oldVnode, vnode) {
	  var el = vnode.elm;
	  var data = vnode.data;
	  var oldData = oldVnode.data;
	  if (
		isUndef(data.staticClass) &&
		isUndef(data.class) && (
		  isUndef(oldData) || (
			isUndef(oldData.staticClass) &&
			isUndef(oldData.class)
		  )
		)
	  ) {
		return
	  }
  
	  var cls = genClassForVnode(vnode);
  
	  // handle transition classes
	  var transitionClass = el._transitionClasses;
	  if (isDef(transitionClass)) {
		cls = concat(cls, stringifyClass(transitionClass));
	  }
  
	  // set the class
	  if (cls !== el._prevClass) {
		el.setAttribute('class', cls);
		el._prevClass = cls;
	  }
	}
  
	var klass = {
	  create: updateClass,
	  update: updateClass
	};
  
	/*  */
  
	var validDivisionCharRE = /[\w).+\-_$\]]/;
  
	function parseFilters (exp) {
	  var inSingle = false;
	  var inDouble = false;
	  var inTemplateString = false;
	  var inRegex = false;
	  var curly = 0;
	  var square = 0;
	  var paren = 0;
	  var lastFilterIndex = 0;
	  var c, prev, i, expression, filters;
  
	  for (i = 0; i < exp.length; i++) {
		prev = c;
		c = exp.charCodeAt(i);
		if (inSingle) {
		  if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
		} else if (inDouble) {
		  if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
		} else if (inTemplateString) {
		  if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
		} else if (inRegex) {
		  if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
		} else if (
		  c === 0x7C && // pipe
		  exp.charCodeAt(i + 1) !== 0x7C &&
		  exp.charCodeAt(i - 1) !== 0x7C &&
		  !curly && !square && !paren
		) {
		  if (expression === undefined) {
			// first filter, end of expression
			lastFilterIndex = i + 1;
			expression = exp.slice(0, i).trim();
		  } else {
			pushFilter();
		  }
		} else {
		  switch (c) {
			case 0x22: inDouble = true; break         // "
			case 0x27: inSingle = true; break         // '
			case 0x60: inTemplateString = true; break // `
			case 0x28: paren++; break                 // (
			case 0x29: paren--; break                 // )
			case 0x5B: square++; break                // [
			case 0x5D: square--; break                // ]
			case 0x7B: curly++; break                 // {
			case 0x7D: curly--; break                 // }
		  }
		  if (c === 0x2f) { // /
			var j = i - 1;
			var p = (void 0);
			// find first non-whitespace prev char
			for (; j >= 0; j--) {
			  p = exp.charAt(j);
			  if (p !== ' ') { break }
			}
			if (!p || !validDivisionCharRE.test(p)) {
			  inRegex = true;
			}
		  }
		}
	  }
  
	  if (expression === undefined) {
		expression = exp.slice(0, i).trim();
	  } else if (lastFilterIndex !== 0) {
		pushFilter();
	  }
  
	  function pushFilter () {
		(filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
		lastFilterIndex = i + 1;
	  }
  
	  if (filters) {
		for (i = 0; i < filters.length; i++) {
		  expression = wrapFilter(expression, filters[i]);
		}
	  }
  
	  return expression
	}
  
	function wrapFilter (exp, filter) {
	  var i = filter.indexOf('(');
	  if (i < 0) {
		// _f: resolveFilter
		return ("_f(\"" + filter + "\")(" + exp + ")")
	  } else {
		var name = filter.slice(0, i);
		var args = filter.slice(i + 1);
		return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
	  }
	}
  
	/*  */
  
  
  
	/* eslint-disable no-unused-vars */
	function baseWarn (msg, range) {
	  console.error(("[Vue compiler]: " + msg));
	}
	/* eslint-enable no-unused-vars */
  
	function pluckModuleFunction (
	  modules,
	  key
	) {
	  return modules
		? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
		: []
	}
  
	function addProp (el, name, value, range, dynamic) {
	  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
	  el.plain = false;
	}
  
	function addAttr (el, name, value, range, dynamic) {
	  var attrs = dynamic
		? (el.dynamicAttrs || (el.dynamicAttrs = []))
		: (el.attrs || (el.attrs = []));
	  attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
	  el.plain = false;
	}
  
	// add a raw attr (use this in preTransforms)
	function addRawAttr (el, name, value, range) {
	  el.attrsMap[name] = value;
	  el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
	}
  
	function addDirective (
	  el,
	  name,
	  rawName,
	  value,
	  arg,
	  isDynamicArg,
	  modifiers,
	  range
	) {
	  (el.directives || (el.directives = [])).push(rangeSetItem({
		name: name,
		rawName: rawName,
		value: value,
		arg: arg,
		isDynamicArg: isDynamicArg,
		modifiers: modifiers
	  }, range));
	  el.plain = false;
	}
  
	function prependModifierMarker (symbol, name, dynamic) {
	  return dynamic
		? ("_p(" + name + ",\"" + symbol + "\")")
		: symbol + name // mark the event as captured
	}
  
	function addHandler (
	  el,
	  name,
	  value,
	  modifiers,
	  important,
	  warn,
	  range,
	  dynamic
	) {
	  modifiers = modifiers || emptyObject;
	  // warn prevent and passive modifier
	  /* istanbul ignore if */
	  if (
		warn &&
		modifiers.prevent && modifiers.passive
	  ) {
		warn(
		  'passive and prevent can\'t be used together. ' +
		  'Passive handler can\'t prevent default event.',
		  range
		);
	  }
  
	  // normalize click.right and click.middle since they don't actually fire
	  // this is technically browser-specific, but at least for now browsers are
	  // the only target envs that have right/middle clicks.
	  if (modifiers.right) {
		if (dynamic) {
		  name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
		} else if (name === 'click') {
		  name = 'contextmenu';
		  delete modifiers.right;
		}
	  } else if (modifiers.middle) {
		if (dynamic) {
		  name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
		} else if (name === 'click') {
		  name = 'mouseup';
		}
	  }
  
	  // check capture modifier
	  if (modifiers.capture) {
		delete modifiers.capture;
		name = prependModifierMarker('!', name, dynamic);
	  }
	  if (modifiers.once) {
		delete modifiers.once;
		name = prependModifierMarker('~', name, dynamic);
	  }
	  /* istanbul ignore if */
	  if (modifiers.passive) {
		delete modifiers.passive;
		name = prependModifierMarker('&', name, dynamic);
	  }
  
	  var events;
	  if (modifiers.native) {
		delete modifiers.native;
		events = el.nativeEvents || (el.nativeEvents = {});
	  } else {
		events = el.events || (el.events = {});
	  }
  
	  var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
	  if (modifiers !== emptyObject) {
		newHandler.modifiers = modifiers;
	  }
  
	  var handlers = events[name];
	  /* istanbul ignore if */
	  if (Array.isArray(handlers)) {
		important ? handlers.unshift(newHandler) : handlers.push(newHandler);
	  } else if (handlers) {
		events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
	  } else {
		events[name] = newHandler;
	  }
  
	  el.plain = false;
	}
  
	function getRawBindingAttr (
	  el,
	  name
	) {
	  return el.rawAttrsMap[':' + name] ||
		el.rawAttrsMap['v-bind:' + name] ||
		el.rawAttrsMap[name]
	}
  
	function getBindingAttr (
	  el,
	  name,
	  getStatic
	) {
	  var dynamicValue =
		getAndRemoveAttr(el, ':' + name) ||
		getAndRemoveAttr(el, 'v-bind:' + name);
	  if (dynamicValue != null) {
		return parseFilters(dynamicValue)
	  } else if (getStatic !== false) {
		var staticValue = getAndRemoveAttr(el, name);
		if (staticValue != null) {
		  return JSON.stringify(staticValue)
		}
	  }
	}
  
	// note: this only removes the attr from the Array (attrsList) so that it
	// doesn't get processed by processAttrs.
	// By default it does NOT remove it from the map (attrsMap) because the map is
	// needed during codegen.
	function getAndRemoveAttr (
	  el,
	  name,
	  removeFromMap
	) {
	  var val;
	  if ((val = el.attrsMap[name]) != null) {
		var list = el.attrsList;
		for (var i = 0, l = list.length; i < l; i++) {
		  if (list[i].name === name) {
			list.splice(i, 1);
			break
		  }
		}
	  }
	  if (removeFromMap) {
		delete el.attrsMap[name];
	  }
	  return val
	}
  
	function getAndRemoveAttrByRegex (
	  el,
	  name
	) {
	  var list = el.attrsList;
	  for (var i = 0, l = list.length; i < l; i++) {
		var attr = list[i];
		if (name.test(attr.name)) {
		  list.splice(i, 1);
		  return attr
		}
	  }
	}
  
	function rangeSetItem (
	  item,
	  range
	) {
	  if (range) {
		if (range.start != null) {
		  item.start = range.start;
		}
		if (range.end != null) {
		  item.end = range.end;
		}
	  }
	  return item
	}
  
	/*  */
  
	/**
	 * Cross-platform code generation for component v-model
	 */
	function genComponentModel (
	  el,
	  value,
	  modifiers
	) {
	  var ref = modifiers || {};
	  var number = ref.number;
	  var trim = ref.trim;
  
	  var baseValueExpression = '$$v';
	  var valueExpression = baseValueExpression;
	  if (trim) {
		valueExpression =
		  "(typeof " + baseValueExpression + " === 'string'" +
		  "? " + baseValueExpression + ".trim()" +
		  ": " + baseValueExpression + ")";
	  }
	  if (number) {
		valueExpression = "_n(" + valueExpression + ")";
	  }
	  var assignment = genAssignmentCode(value, valueExpression);
  
	  el.model = {
		value: ("(" + value + ")"),
		expression: JSON.stringify(value),
		callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
	  };
	}
  
	/**
	 * Cross-platform codegen helper for generating v-model value assignment code.
	 */
	function genAssignmentCode (
	  value,
	  assignment
	) {
	  var res = parseModel(value);
	  if (res.key === null) {
		return (value + "=" + assignment)
	  } else {
		return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
	  }
	}
  
	/**
	 * Parse a v-model expression into a base path and a final key segment.
	 * Handles both dot-path and possible square brackets.
	 *
	 * Possible cases:
	 *
	 * - test
	 * - test[key]
	 * - test[test1[key]]
	 * - test["a"][key]
	 * - xxx.test[a[a].test1[key]]
	 * - test.xxx.a["asa"][test1[key]]
	 *
	 */
  
	var len, str, chr, index$1, expressionPos, expressionEndPos;
  
  
  
	function parseModel (val) {
	  // Fix https://github.com/vuejs/vue/pull/7730
	  // allow v-model="obj.val " (trailing whitespace)
	  val = val.trim();
	  len = val.length;
  
	  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
		index$1 = val.lastIndexOf('.');
		if (index$1 > -1) {
		  return {
			exp: val.slice(0, index$1),
			key: '"' + val.slice(index$1 + 1) + '"'
		  }
		} else {
		  return {
			exp: val,
			key: null
		  }
		}
	  }
  
	  str = val;
	  index$1 = expressionPos = expressionEndPos = 0;
  
	  while (!eof()) {
		chr = next();
		/* istanbul ignore if */
		if (isStringStart(chr)) {
		  parseString(chr);
		} else if (chr === 0x5B) {
		  parseBracket(chr);
		}
	  }
  
	  return {
		exp: val.slice(0, expressionPos),
		key: val.slice(expressionPos + 1, expressionEndPos)
	  }
	}
  
	function next () {
	  return str.charCodeAt(++index$1)
	}
  
	function eof () {
	  return index$1 >= len
	}
  
	function isStringStart (chr) {
	  return chr === 0x22 || chr === 0x27
	}
  
	function parseBracket (chr) {
	  var inBracket = 1;
	  expressionPos = index$1;
	  while (!eof()) {
		chr = next();
		if (isStringStart(chr)) {
		  parseString(chr);
		  continue
		}
		if (chr === 0x5B) { inBracket++; }
		if (chr === 0x5D) { inBracket--; }
		if (inBracket === 0) {
		  expressionEndPos = index$1;
		  break
		}
	  }
	}
  
	function parseString (chr) {
	  var stringQuote = chr;
	  while (!eof()) {
		chr = next();
		if (chr === stringQuote) {
		  break
		}
	  }
	}
  
	/*  */
  
	var warn$1;
  
	// in some cases, the event used has to be determined at runtime
	// so we used some reserved tokens during compile.
	var RANGE_TOKEN = '__r';
	var CHECKBOX_RADIO_TOKEN = '__c';
  
	function model (
	  el,
	  dir,
	  _warn
	) {
	  warn$1 = _warn;
	  var value = dir.value;
	  var modifiers = dir.modifiers;
	  var tag = el.tag;
	  var type = el.attrsMap.type;
  
	  {
		// inputs with type="file" are read only and setting the input's
		// value will throw an error.
		if (tag === 'input' && type === 'file') {
		  warn$1(
			"<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
			"File inputs are read only. Use a v-on:change listener instead.",
			el.rawAttrsMap['v-model']
		  );
		}
	  }
  
	  if (el.component) {
		genComponentModel(el, value, modifiers);
		// component v-model doesn't need extra runtime
		return false
	  } else if (tag === 'select') {
		genSelect(el, value, modifiers);
	  } else if (tag === 'input' && type === 'checkbox') {
		genCheckboxModel(el, value, modifiers);
	  } else if (tag === 'input' && type === 'radio') {
		genRadioModel(el, value, modifiers);
	  } else if (tag === 'input' || tag === 'textarea') {
		genDefaultModel(el, value, modifiers);
	  } else if (!config.isReservedTag(tag)) {
		genComponentModel(el, value, modifiers);
		// component v-model doesn't need extra runtime
		return false
	  } else {
		warn$1(
		  "<" + (el.tag) + " v-model=\"" + value + "\">: " +
		  "v-model is not supported on this element type. " +
		  'If you are working with contenteditable, it\'s recommended to ' +
		  'wrap a library dedicated for that purpose inside a custom component.',
		  el.rawAttrsMap['v-model']
		);
	  }
  
	  // ensure runtime directive metadata
	  return true
	}
  
	function genCheckboxModel (
	  el,
	  value,
	  modifiers
	) {
	  var number = modifiers && modifiers.number;
	  var valueBinding = getBindingAttr(el, 'value') || 'null';
	  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
	  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
	  addProp(el, 'checked',
		"Array.isArray(" + value + ")" +
		"?_i(" + value + "," + valueBinding + ")>-1" + (
		  trueValueBinding === 'true'
			? (":(" + value + ")")
			: (":_q(" + value + "," + trueValueBinding + ")")
		)
	  );
	  addHandler(el, 'change',
		"var $$a=" + value + "," +
			'$$el=$event.target,' +
			"$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
		'if(Array.isArray($$a)){' +
		  "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
			  '$$i=_i($$a,$$v);' +
		  "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
		  "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
		"}else{" + (genAssignmentCode(value, '$$c')) + "}",
		null, true
	  );
	}
  
	function genRadioModel (
	  el,
	  value,
	  modifiers
	) {
	  var number = modifiers && modifiers.number;
	  var valueBinding = getBindingAttr(el, 'value') || 'null';
	  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
	  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
	  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
	}
  
	function genSelect (
	  el,
	  value,
	  modifiers
	) {
	  var number = modifiers && modifiers.number;
	  var selectedVal = "Array.prototype.filter" +
		".call($event.target.options,function(o){return o.selected})" +
		".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
		"return " + (number ? '_n(val)' : 'val') + "})";
  
	  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
	  var code = "var $$selectedVal = " + selectedVal + ";";
	  code = code + " " + (genAssignmentCode(value, assignment));
	  addHandler(el, 'change', code, null, true);
	}
  
	function genDefaultModel (
	  el,
	  value,
	  modifiers
	) {
	  var type = el.attrsMap.type;
  
	  // warn if v-bind:value conflicts with v-model
	  // except for inputs with v-bind:type
	  {
		var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
		var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
		if (value$1 && !typeBinding) {
		  var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
		  warn$1(
			binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
			'because the latter already expands to a value binding internally',
			el.rawAttrsMap[binding]
		  );
		}
	  }
  
	  var ref = modifiers || {};
	  var lazy = ref.lazy;
	  var number = ref.number;
	  var trim = ref.trim;
	  var needCompositionGuard = !lazy && type !== 'range';
	  var event = lazy
		? 'change'
		: type === 'range'
		  ? RANGE_TOKEN
		  : 'input';
  
	  var valueExpression = '$event.target.value';
	  if (trim) {
		valueExpression = "$event.target.value.trim()";
	  }
	  if (number) {
		valueExpression = "_n(" + valueExpression + ")";
	  }
  
	  var code = genAssignmentCode(value, valueExpression);
	  if (needCompositionGuard) {
		code = "if($event.target.composing)return;" + code;
	  }
  
	  addProp(el, 'value', ("(" + value + ")"));
	  addHandler(el, event, code, null, true);
	  if (trim || number) {
		addHandler(el, 'blur', '$forceUpdate()');
	  }
	}
  
	/*  */
  
	// normalize v-model event tokens that can only be determined at runtime.
	// it's important to place the event as the first in the array because
	// the whole point is ensuring the v-model callback gets called before
	// user-attached handlers.
	function normalizeEvents (on) {
	  /* istanbul ignore if */
	  if (isDef(on[RANGE_TOKEN])) {
		// IE input[type=range] only supports `change` event
		var event = isIE ? 'change' : 'input';
		on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
		delete on[RANGE_TOKEN];
	  }
	  // This was originally intended to fix #4521 but no longer necessary
	  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
	  /* istanbul ignore if */
	  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
		on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
		delete on[CHECKBOX_RADIO_TOKEN];
	  }
	}
  
	var target$1;
  
	function createOnceHandler$1 (event, handler, capture) {
	  var _target = target$1; // save current target element in closure
	  return function onceHandler () {
		var res = handler.apply(null, arguments);
		if (res !== null) {
		  remove$2(event, onceHandler, capture, _target);
		}
	  }
	}
  
	// #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
	// implementation and does not fire microtasks in between event propagation, so
	// safe to exclude.
	var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
  
	function add$1 (
	  name,
	  handler,
	  capture,
	  passive
	) {
	  // async edge case #6566: inner click event triggers patch, event handler
	  // attached to outer element during patch, and triggered again. This
	  // happens because browsers fire microtask ticks between event propagation.
	  // the solution is simple: we save the timestamp when a handler is attached,
	  // and the handler would only fire if the event passed to it was fired
	  // AFTER it was attached.
	  if (useMicrotaskFix) {
		var attachedTimestamp = currentFlushTimestamp;
		var original = handler;
		handler = original._wrapper = function (e) {
		  if (
			// no bubbling, should always fire.
			// this is just a safety net in case event.timeStamp is unreliable in
			// certain weird environments...
			e.target === e.currentTarget ||
			// event is fired after handler attachment
			e.timeStamp >= attachedTimestamp ||
			// bail for environments that have buggy event.timeStamp implementations
			// #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
			// #9681 QtWebEngine event.timeStamp is negative value
			e.timeStamp <= 0 ||
			// #9448 bail if event is fired in another document in a multi-page
			// electron/nw.js app, since event.timeStamp will be using a different
			// starting reference
			e.target.ownerDocument !== document
		  ) {
			return original.apply(this, arguments)
		  }
		};
	  }
	  target$1.addEventListener(
		name,
		handler,
		supportsPassive
		  ? { capture: capture, passive: passive }
		  : capture
	  );
	}
  
	function remove$2 (
	  name,
	  handler,
	  capture,
	  _target
	) {
	  (_target || target$1).removeEventListener(
		name,
		handler._wrapper || handler,
		capture
	  );
	}
  
	function updateDOMListeners (oldVnode, vnode) {
	  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
		return
	  }
	  var on = vnode.data.on || {};
	  var oldOn = oldVnode.data.on || {};
	  target$1 = vnode.elm;
	  normalizeEvents(on);
	  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
	  target$1 = undefined;
	}
  
	var events = {
	  create: updateDOMListeners,
	  update: updateDOMListeners
	};
  
	/*  */
  
	var svgContainer;
  
	function updateDOMProps (oldVnode, vnode) {
	  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
		return
	  }
	  var key, cur;
	  var elm = vnode.elm;
	  var oldProps = oldVnode.data.domProps || {};
	  var props = vnode.data.domProps || {};
	  // clone observed objects, as the user probably wants to mutate it
	  if (isDef(props.__ob__)) {
		props = vnode.data.domProps = extend({}, props);
	  }
  
	  for (key in oldProps) {
		if (!(key in props)) {
		  elm[key] = '';
		}
	  }
  
	  for (key in props) {
		cur = props[key];
		// ignore children if the node has textContent or innerHTML,
		// as these will throw away existing DOM nodes and cause removal errors
		// on subsequent patches (#3360)
		if (key === 'textContent' || key === 'innerHTML') {
		  if (vnode.children) { vnode.children.length = 0; }
		  if (cur === oldProps[key]) { continue }
		  // #6601 work around Chrome version <= 55 bug where single textNode
		  // replaced by innerHTML/textContent retains its parentNode property
		  if (elm.childNodes.length === 1) {
			elm.removeChild(elm.childNodes[0]);
		  }
		}
  
		if (key === 'value' && elm.tagName !== 'PROGRESS') {
		  // store value as _value as well since
		  // non-string values will be stringified
		  elm._value = cur;
		  // avoid resetting cursor position when value is the same
		  var strCur = isUndef(cur) ? '' : String(cur);
		  if (shouldUpdateValue(elm, strCur)) {
			elm.value = strCur;
		  }
		} else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
		  // IE doesn't support innerHTML for SVG elements
		  svgContainer = svgContainer || document.createElement('div');
		  svgContainer.innerHTML = "<svg>" + cur + "</svg>";
		  var svg = svgContainer.firstChild;
		  while (elm.firstChild) {
			elm.removeChild(elm.firstChild);
		  }
		  while (svg.firstChild) {
			elm.appendChild(svg.firstChild);
		  }
		} else if (
		  // skip the update if old and new VDOM state is the same.
		  // `value` is handled separately because the DOM value may be temporarily
		  // out of sync with VDOM state due to focus, composition and modifiers.
		  // This  #4521 by skipping the unnecessary `checked` update.
		  cur !== oldProps[key]
		) {
		  // some property updates can throw
		  // e.g. `value` on <progress> w/ non-finite value
		  try {
			elm[key] = cur;
		  } catch (e) {}
		}
	  }
	}
  
	// check platforms/web/util/attrs.js acceptValue
  
  
	function shouldUpdateValue (elm, checkVal) {
	  return (!elm.composing && (
		elm.tagName === 'OPTION' ||
		isNotInFocusAndDirty(elm, checkVal) ||
		isDirtyWithModifiers(elm, checkVal)
	  ))
	}
  
	function isNotInFocusAndDirty (elm, checkVal) {
	  // return true when textbox (.number and .trim) loses focus and its value is
	  // not equal to the updated value
	  var notInFocus = true;
	  // #6157
	  // work around IE bug when accessing document.activeElement in an iframe
	  try { notInFocus = document.activeElement !== elm; } catch (e) {}
	  return notInFocus && elm.value !== checkVal
	}
  
	function isDirtyWithModifiers (elm, newVal) {
	  var value = elm.value;
	  var modifiers = elm._vModifiers; // injected by v-model runtime
	  if (isDef(modifiers)) {
		if (modifiers.number) {
		  return toNumber(value) !== toNumber(newVal)
		}
		if (modifiers.trim) {
		  return value.trim() !== newVal.trim()
		}
	  }
	  return value !== newVal
	}
  
	var domProps = {
	  create: updateDOMProps,
	  update: updateDOMProps
	};
  
	/*  */
  
	var parseStyleText = cached(function (cssText) {
	  var res = {};
	  var listDelimiter = /;(?![^(]*\))/g;
	  var propertyDelimiter = /:(.+)/;
	  cssText.split(listDelimiter).forEach(function (item) {
		if (item) {
		  var tmp = item.split(propertyDelimiter);
		  tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
		}
	  });
	  return res
	});
  
	// merge static and dynamic style data on the same vnode
	function normalizeStyleData (data) {
	  var style = normalizeStyleBinding(data.style);
	  // static style is pre-processed into an object during compilation
	  // and is always a fresh object, so it's safe to merge into it
	  return data.staticStyle
		? extend(data.staticStyle, style)
		: style
	}
  
	// normalize possible array / string values into Object
	function normalizeStyleBinding (bindingStyle) {
	  if (Array.isArray(bindingStyle)) {
		return toObject(bindingStyle)
	  }
	  if (typeof bindingStyle === 'string') {
		return parseStyleText(bindingStyle)
	  }
	  return bindingStyle
	}
  
	/**
	 * parent component style should be after child's
	 * so that parent component's style could override it
	 */
	function getStyle (vnode, checkChild) {
	  var res = {};
	  var styleData;
  
	  if (checkChild) {
		var childNode = vnode;
		while (childNode.componentInstance) {
		  childNode = childNode.componentInstance._vnode;
		  if (
			childNode && childNode.data &&
			(styleData = normalizeStyleData(childNode.data))
		  ) {
			extend(res, styleData);
		  }
		}
	  }
  
	  if ((styleData = normalizeStyleData(vnode.data))) {
		extend(res, styleData);
	  }
  
	  var parentNode = vnode;
	  while ((parentNode = parentNode.parent)) {
		if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
		  extend(res, styleData);
		}
	  }
	  return res
	}
  
	/*  */
  
	var cssVarRE = /^--/;
	var importantRE = /\s*!important$/;
	var setProp = function (el, name, val) {
	  /* istanbul ignore if */
	  if (cssVarRE.test(name)) {
		el.style.setProperty(name, val);
	  } else if (importantRE.test(val)) {
		el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
	  } else {
		var normalizedName = normalize(name);
		if (Array.isArray(val)) {
		  // Support values array created by autoprefixer, e.g.
		  // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
		  // Set them one by one, and the browser will only set those it can recognize
		  for (var i = 0, len = val.length; i < len; i++) {
			el.style[normalizedName] = val[i];
		  }
		} else {
		  el.style[normalizedName] = val;
		}
	  }
	};
  
	var vendorNames = ['Webkit', 'Moz', 'ms'];
  
	var emptyStyle;
	var normalize = cached(function (prop) {
	  emptyStyle = emptyStyle || document.createElement('div').style;
	  prop = camelize(prop);
	  if (prop !== 'filter' && (prop in emptyStyle)) {
		return prop
	  }
	  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
	  for (var i = 0; i < vendorNames.length; i++) {
		var name = vendorNames[i] + capName;
		if (name in emptyStyle) {
		  return name
		}
	  }
	});
  
	function updateStyle (oldVnode, vnode) {
	  var data = vnode.data;
	  var oldData = oldVnode.data;
  
	  if (isUndef(data.staticStyle) && isUndef(data.style) &&
		isUndef(oldData.staticStyle) && isUndef(oldData.style)
	  ) {
		return
	  }
  
	  var cur, name;
	  var el = vnode.elm;
	  var oldStaticStyle = oldData.staticStyle;
	  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
  
	  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
	  var oldStyle = oldStaticStyle || oldStyleBinding;
  
	  var style = normalizeStyleBinding(vnode.data.style) || {};
  
	  // store normalized style under a different key for next diff
	  // make sure to clone it if it's reactive, since the user likely wants
	  // to mutate it.
	  vnode.data.normalizedStyle = isDef(style.__ob__)
		? extend({}, style)
		: style;
  
	  var newStyle = getStyle(vnode, true);
  
	  for (name in oldStyle) {
		if (isUndef(newStyle[name])) {
		  setProp(el, name, '');
		}
	  }
	  for (name in newStyle) {
		cur = newStyle[name];
		if (cur !== oldStyle[name]) {
		  // ie9 setting to null has no effect, must use empty string
		  setProp(el, name, cur == null ? '' : cur);
		}
	  }
	}
  
	var style = {
	  create: updateStyle,
	  update: updateStyle
	};
  
	/*  */
  
	var whitespaceRE = /\s+/;
  
	/**
	 * Add class with compatibility for SVG since classList is not supported on
	 * SVG elements in IE
	 */
	function addClass (el, cls) {
	  /* istanbul ignore if */
	  if (!cls || !(cls = cls.trim())) {
		return
	  }
  
	  /* istanbul ignore else */
	  if (el.classList) {
		if (cls.indexOf(' ') > -1) {
		  cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
		} else {
		  el.classList.add(cls);
		}
	  } else {
		var cur = " " + (el.getAttribute('class') || '') + " ";
		if (cur.indexOf(' ' + cls + ' ') < 0) {
		  el.setAttribute('class', (cur + cls).trim());
		}
	  }
	}
  
	/**
	 * Remove class with compatibility for SVG since classList is not supported on
	 * SVG elements in IE
	 */
	function removeClass (el, cls) {
	  /* istanbul ignore if */
	  if (!cls || !(cls = cls.trim())) {
		return
	  }
  
	  /* istanbul ignore else */
	  if (el.classList) {
		if (cls.indexOf(' ') > -1) {
		  cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
		} else {
		  el.classList.remove(cls);
		}
		if (!el.classList.length) {
		  el.removeAttribute('class');
		}
	  } else {
		var cur = " " + (el.getAttribute('class') || '') + " ";
		var tar = ' ' + cls + ' ';
		while (cur.indexOf(tar) >= 0) {
		  cur = cur.replace(tar, ' ');
		}
		cur = cur.trim();
		if (cur) {
		  el.setAttribute('class', cur);
		} else {
		  el.removeAttribute('class');
		}
	  }
	}
  
	/*  */
  
	function resolveTransition (def$$1) {
	  if (!def$$1) {
		return
	  }
	  /* istanbul ignore else */
	  if (typeof def$$1 === 'object') {
		var res = {};
		if (def$$1.css !== false) {
		  extend(res, autoCssTransition(def$$1.name || 'v'));
		}
		extend(res, def$$1);
		return res
	  } else if (typeof def$$1 === 'string') {
		return autoCssTransition(def$$1)
	  }
	}
  
	var autoCssTransition = cached(function (name) {
	  return {
		enterClass: (name + "-enter"),
		enterToClass: (name + "-enter-to"),
		enterActiveClass: (name + "-enter-active"),
		leaveClass: (name + "-leave"),
		leaveToClass: (name + "-leave-to"),
		leaveActiveClass: (name + "-leave-active")
	  }
	});
  
	var hasTransition = inBrowser && !isIE9;
	var TRANSITION = 'transition';
	var ANIMATION = 'animation';
  
	// Transition property/event sniffing
	var transitionProp = 'transition';
	var transitionEndEvent = 'transitionend';
	var animationProp = 'animation';
	var animationEndEvent = 'animationend';
	if (hasTransition) {
	  /* istanbul ignore if */
	  if (window.ontransitionend === undefined &&
		window.onwebkittransitionend !== undefined
	  ) {
		transitionProp = 'WebkitTransition';
		transitionEndEvent = 'webkitTransitionEnd';
	  }
	  if (window.onanimationend === undefined &&
		window.onwebkitanimationend !== undefined
	  ) {
		animationProp = 'WebkitAnimation';
		animationEndEvent = 'webkitAnimationEnd';
	  }
	}
  
	// binding to window is necessary to make hot reload work in IE in strict mode
	var raf = inBrowser
	  ? window.requestAnimationFrame
		? window.requestAnimationFrame.bind(window)
		: setTimeout
	  : /* istanbul ignore next */ function (fn) { return fn(); };
  
	function nextFrame (fn) {
	  raf(function () {
		raf(fn);
	  });
	}
  
	function addTransitionClass (el, cls) {
	  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
	  if (transitionClasses.indexOf(cls) < 0) {
		transitionClasses.push(cls);
		addClass(el, cls);
	  }
	}
  
	function removeTransitionClass (el, cls) {
	  if (el._transitionClasses) {
		remove(el._transitionClasses, cls);
	  }
	  removeClass(el, cls);
	}
  
	function whenTransitionEnds (
	  el,
	  expectedType,
	  cb
	) {
	  var ref = getTransitionInfo(el, expectedType);
	  var type = ref.type;
	  var timeout = ref.timeout;
	  var propCount = ref.propCount;
	  if (!type) { return cb() }
	  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
	  var ended = 0;
	  var end = function () {
		el.removeEventListener(event, onEnd);
		cb();
	  };
	  var onEnd = function (e) {
		if (e.target === el) {
		  if (++ended >= propCount) {
			end();
		  }
		}
	  };
	  setTimeout(function () {
		if (ended < propCount) {
		  end();
		}
	  }, timeout + 1);
	  el.addEventListener(event, onEnd);
	}
  
	var transformRE = /\b(transform|all)(,|$)/;
  
	function getTransitionInfo (el, expectedType) {
	  var styles = window.getComputedStyle(el);
	  // JSDOM may return undefined for transition properties
	  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
	  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
	  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
	  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
	  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
	  var animationTimeout = getTimeout(animationDelays, animationDurations);
  
	  var type;
	  var timeout = 0;
	  var propCount = 0;
	  /* istanbul ignore if */
	  if (expectedType === TRANSITION) {
		if (transitionTimeout > 0) {
		  type = TRANSITION;
		  timeout = transitionTimeout;
		  propCount = transitionDurations.length;
		}
	  } else if (expectedType === ANIMATION) {
		if (animationTimeout > 0) {
		  type = ANIMATION;
		  timeout = animationTimeout;
		  propCount = animationDurations.length;
		}
	  } else {
		timeout = Math.max(transitionTimeout, animationTimeout);
		type = timeout > 0
		  ? transitionTimeout > animationTimeout
			? TRANSITION
			: ANIMATION
		  : null;
		propCount = type
		  ? type === TRANSITION
			? transitionDurations.length
			: animationDurations.length
		  : 0;
	  }
	  var hasTransform =
		type === TRANSITION &&
		transformRE.test(styles[transitionProp + 'Property']);
	  return {
		type: type,
		timeout: timeout,
		propCount: propCount,
		hasTransform: hasTransform
	  }
	}
  
	function getTimeout (delays, durations) {
	  /* istanbul ignore next */
	  while (delays.length < durations.length) {
		delays = delays.concat(delays);
	  }
  
	  return Math.max.apply(null, durations.map(function (d, i) {
		return toMs(d) + toMs(delays[i])
	  }))
	}
  
	// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
	// in a locale-dependent way, using a comma instead of a dot.
	// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
	// as a floor function) causing unexpected behaviors
	function toMs (s) {
	  return Number(s.slice(0, -1).replace(',', '.')) * 1000
	}
  
	/*  */
  
	function enter (vnode, toggleDisplay) {
	  var el = vnode.elm;
  
	  // call leave callback now
	  if (isDef(el._leaveCb)) {
		el._leaveCb.cancelled = true;
		el._leaveCb();
	  }
  
	  var data = resolveTransition(vnode.data.transition);
	  if (isUndef(data)) {
		return
	  }
  
	  /* istanbul ignore if */
	  if (isDef(el._enterCb) || el.nodeType !== 1) {
		return
	  }
  
	  var css = data.css;
	  var type = data.type;
	  var enterClass = data.enterClass;
	  var enterToClass = data.enterToClass;
	  var enterActiveClass = data.enterActiveClass;
	  var appearClass = data.appearClass;
	  var appearToClass = data.appearToClass;
	  var appearActiveClass = data.appearActiveClass;
	  var beforeEnter = data.beforeEnter;
	  var enter = data.enter;
	  var afterEnter = data.afterEnter;
	  var enterCancelled = data.enterCancelled;
	  var beforeAppear = data.beforeAppear;
	  var appear = data.appear;
	  var afterAppear = data.afterAppear;
	  var appearCancelled = data.appearCancelled;
	  var duration = data.duration;
  
	  // activeInstance will always be the <transition> component managing this
	  // transition. One edge case to check is when the <transition> is placed
	  // as the root node of a child component. In that case we need to check
	  // <transition>'s parent for appear check.
	  var context = activeInstance;
	  var transitionNode = activeInstance.$vnode;
	  while (transitionNode && transitionNode.parent) {
		context = transitionNode.context;
		transitionNode = transitionNode.parent;
	  }
  
	  var isAppear = !context._isMounted || !vnode.isRootInsert;
  
	  if (isAppear && !appear && appear !== '') {
		return
	  }
  
	  var startClass = isAppear && appearClass
		? appearClass
		: enterClass;
	  var activeClass = isAppear && appearActiveClass
		? appearActiveClass
		: enterActiveClass;
	  var toClass = isAppear && appearToClass
		? appearToClass
		: enterToClass;
  
	  var beforeEnterHook = isAppear
		? (beforeAppear || beforeEnter)
		: beforeEnter;
	  var enterHook = isAppear
		? (typeof appear === 'function' ? appear : enter)
		: enter;
	  var afterEnterHook = isAppear
		? (afterAppear || afterEnter)
		: afterEnter;
	  var enterCancelledHook = isAppear
		? (appearCancelled || enterCancelled)
		: enterCancelled;
  
	  var explicitEnterDuration = toNumber(
		isObject(duration)
		  ? duration.enter
		  : duration
	  );
  
	  if (explicitEnterDuration != null) {
		checkDuration(explicitEnterDuration, 'enter', vnode);
	  }
  
	  var expectsCSS = css !== false && !isIE9;
	  var userWantsControl = getHookArgumentsLength(enterHook);
  
	  var cb = el._enterCb = once(function () {
		if (expectsCSS) {
		  removeTransitionClass(el, toClass);
		  removeTransitionClass(el, activeClass);
		}
		if (cb.cancelled) {
		  if (expectsCSS) {
			removeTransitionClass(el, startClass);
		  }
		  enterCancelledHook && enterCancelledHook(el);
		} else {
		  afterEnterHook && afterEnterHook(el);
		}
		el._enterCb = null;
	  });
  
	  if (!vnode.data.show) {
		// remove pending leave element on enter by injecting an insert hook
		mergeVNodeHook(vnode, 'insert', function () {
		  var parent = el.parentNode;
		  var pendingNode = parent && parent._pending && parent._pending[vnode.key];
		  if (pendingNode &&
			pendingNode.tag === vnode.tag &&
			pendingNode.elm._leaveCb
		  ) {
			pendingNode.elm._leaveCb();
		  }
		  enterHook && enterHook(el, cb);
		});
	  }
  
	  // start enter transition
	  beforeEnterHook && beforeEnterHook(el);
	  if (expectsCSS) {
		addTransitionClass(el, startClass);
		addTransitionClass(el, activeClass);
		nextFrame(function () {
		  removeTransitionClass(el, startClass);
		  if (!cb.cancelled) {
			addTransitionClass(el, toClass);
			if (!userWantsControl) {
			  if (isValidDuration(explicitEnterDuration)) {
				setTimeout(cb, explicitEnterDuration);
			  } else {
				whenTransitionEnds(el, type, cb);
			  }
			}
		  }
		});
	  }
  
	  if (vnode.data.show) {
		toggleDisplay && toggleDisplay();
		enterHook && enterHook(el, cb);
	  }
  
	  if (!expectsCSS && !userWantsControl) {
		cb();
	  }
	}
  
	function leave (vnode, rm) {
	  var el = vnode.elm;
  
	  // call enter callback now
	  if (isDef(el._enterCb)) {
		el._enterCb.cancelled = true;
		el._enterCb();
	  }
  
	  var data = resolveTransition(vnode.data.transition);
	  if (isUndef(data) || el.nodeType !== 1) {
		return rm()
	  }
  
	  /* istanbul ignore if */
	  if (isDef(el._leaveCb)) {
		return
	  }
  
	  var css = data.css;
	  var type = data.type;
	  var leaveClass = data.leaveClass;
	  var leaveToClass = data.leaveToClass;
	  var leaveActiveClass = data.leaveActiveClass;
	  var beforeLeave = data.beforeLeave;
	  var leave = data.leave;
	  var afterLeave = data.afterLeave;
	  var leaveCancelled = data.leaveCancelled;
	  var delayLeave = data.delayLeave;
	  var duration = data.duration;
  
	  var expectsCSS = css !== false && !isIE9;
	  var userWantsControl = getHookArgumentsLength(leave);
  
	  var explicitLeaveDuration = toNumber(
		isObject(duration)
		  ? duration.leave
		  : duration
	  );
  
	  if (isDef(explicitLeaveDuration)) {
		checkDuration(explicitLeaveDuration, 'leave', vnode);
	  }
  
	  var cb = el._leaveCb = once(function () {
		if (el.parentNode && el.parentNode._pending) {
		  el.parentNode._pending[vnode.key] = null;
		}
		if (expectsCSS) {
		  removeTransitionClass(el, leaveToClass);
		  removeTransitionClass(el, leaveActiveClass);
		}
		if (cb.cancelled) {
		  if (expectsCSS) {
			removeTransitionClass(el, leaveClass);
		  }
		  leaveCancelled && leaveCancelled(el);
		} else {
		  rm();
		  afterLeave && afterLeave(el);
		}
		el._leaveCb = null;
	  });
  
	  if (delayLeave) {
		delayLeave(performLeave);
	  } else {
		performLeave();
	  }
  
	  function performLeave () {
		// the delayed leave may have already been cancelled
		if (cb.cancelled) {
		  return
		}
		// record leaving element
		if (!vnode.data.show && el.parentNode) {
		  (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
		}
		beforeLeave && beforeLeave(el);
		if (expectsCSS) {
		  addTransitionClass(el, leaveClass);
		  addTransitionClass(el, leaveActiveClass);
		  nextFrame(function () {
			removeTransitionClass(el, leaveClass);
			if (!cb.cancelled) {
			  addTransitionClass(el, leaveToClass);
			  if (!userWantsControl) {
				if (isValidDuration(explicitLeaveDuration)) {
				  setTimeout(cb, explicitLeaveDuration);
				} else {
				  whenTransitionEnds(el, type, cb);
				}
			  }
			}
		  });
		}
		leave && leave(el, cb);
		if (!expectsCSS && !userWantsControl) {
		  cb();
		}
	  }
	}
  
	// only used in dev mode
	function checkDuration (val, name, vnode) {
	  if (typeof val !== 'number') {
		warn(
		  "<transition> explicit " + name + " duration is not a valid number - " +
		  "got " + (JSON.stringify(val)) + ".",
		  vnode.context
		);
	  } else if (isNaN(val)) {
		warn(
		  "<transition> explicit " + name + " duration is NaN - " +
		  'the duration expression might be incorrect.',
		  vnode.context
		);
	  }
	}
  
	function isValidDuration (val) {
	  return typeof val === 'number' && !isNaN(val)
	}
  
	/**
	 * Normalize a transition hook's argument length. The hook may be:
	 * - a merged hook (invoker) with the original in .fns
	 * - a wrapped component method (check ._length)
	 * - a plain function (.length)
	 */
	function getHookArgumentsLength (fn) {
	  if (isUndef(fn)) {
		return false
	  }
	  var invokerFns = fn.fns;
	  if (isDef(invokerFns)) {
		// invoker
		return getHookArgumentsLength(
		  Array.isArray(invokerFns)
			? invokerFns[0]
			: invokerFns
		)
	  } else {
		return (fn._length || fn.length) > 1
	  }
	}
  
	function _enter (_, vnode) {
	  if (vnode.data.show !== true) {
		enter(vnode);
	  }
	}
  
	var transition = inBrowser ? {
	  create: _enter,
	  activate: _enter,
	  remove: function remove$$1 (vnode, rm) {
		/* istanbul ignore else */
		if (vnode.data.show !== true) {
		  leave(vnode, rm);
		} else {
		  rm();
		}
	  }
	} : {};
  
	var platformModules = [
	  attrs,
	  klass,
	  events,
	  domProps,
	  style,
	  transition
	];
  
	/*  */
  
	// the directive module should be applied last, after all
	// built-in modules have been applied.
	var modules = platformModules.concat(baseModules);
  
	var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
  
	/**
	 * Not type checking this file because flow doesn't like attaching
	 * properties to Elements.
	 */
  
	/* istanbul ignore if */
	if (isIE9) {
	  // http://www.matts411.com/post/internet-explorer-9-oninput/
	  document.addEventListener('selectionchange', function () {
		var el = document.activeElement;
		if (el && el.vmodel) {
		  trigger(el, 'input');
		}
	  });
	}
  
	var directive = {
	  inserted: function inserted (el, binding, vnode, oldVnode) {
		if (vnode.tag === 'select') {
		  // #6903
		  if (oldVnode.elm && !oldVnode.elm._vOptions) {
			mergeVNodeHook(vnode, 'postpatch', function () {
			  directive.componentUpdated(el, binding, vnode);
			});
		  } else {
			setSelected(el, binding, vnode.context);
		  }
		  el._vOptions = [].map.call(el.options, getValue);
		} else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
		  el._vModifiers = binding.modifiers;
		  if (!binding.modifiers.lazy) {
			el.addEventListener('compositionstart', onCompositionStart);
			el.addEventListener('compositionend', onCompositionEnd);
			// Safari < 10.2 & UIWebView doesn't fire compositionend when
			// switching focus before confirming composition choice
			// this also fixes the issue where some browsers e.g. iOS Chrome
			// fires "change" instead of "input" on autocomplete.
			el.addEventListener('change', onCompositionEnd);
			/* istanbul ignore if */
			if (isIE9) {
			  el.vmodel = true;
			}
		  }
		}
	  },
  
	  componentUpdated: function componentUpdated (el, binding, vnode) {
		if (vnode.tag === 'select') {
		  setSelected(el, binding, vnode.context);
		  // in case the options rendered by v-for have changed,
		  // it's possible that the value is out-of-sync with the rendered options.
		  // detect such cases and filter out values that no longer has a matching
		  // option in the DOM.
		  var prevOptions = el._vOptions;
		  var curOptions = el._vOptions = [].map.call(el.options, getValue);
		  if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
			// trigger change event if
			// no matching option found for at least one value
			var needReset = el.multiple
			  ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
			  : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
			if (needReset) {
			  trigger(el, 'change');
			}
		  }
		}
	  }
	};
  
	function setSelected (el, binding, vm) {
	  actuallySetSelected(el, binding, vm);
	  /* istanbul ignore if */
	  if (isIE || isEdge) {
		setTimeout(function () {
		  actuallySetSelected(el, binding, vm);
		}, 0);
	  }
	}
  
	function actuallySetSelected (el, binding, vm) {
	  var value = binding.value;
	  var isMultiple = el.multiple;
	  if (isMultiple && !Array.isArray(value)) {
		warn(
		  "<select multiple v-model=\"" + (binding.expression) + "\"> " +
		  "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
		  vm
		);
		return
	  }
	  var selected, option;
	  for (var i = 0, l = el.options.length; i < l; i++) {
		option = el.options[i];
		if (isMultiple) {
		  selected = looseIndexOf(value, getValue(option)) > -1;
		  if (option.selected !== selected) {
			option.selected = selected;
		  }
		} else {
		  if (looseEqual(getValue(option), value)) {
			if (el.selectedIndex !== i) {
			  el.selectedIndex = i;
			}
			return
		  }
		}
	  }
	  if (!isMultiple) {
		el.selectedIndex = -1;
	  }
	}
  
	function hasNoMatchingOption (value, options) {
	  return options.every(function (o) { return !looseEqual(o, value); })
	}
  
	function getValue (option) {
	  return '_value' in option
		? option._value
		: option.value
	}
  
	function onCompositionStart (e) {
	  e.target.composing = true;
	}
  
	function onCompositionEnd (e) {
	  // prevent triggering an input event for no reason
	  if (!e.target.composing) { return }
	  e.target.composing = false;
	  trigger(e.target, 'input');
	}
  
	function trigger (el, type) {
	  var e = document.createEvent('HTMLEvents');
	  e.initEvent(type, true, true);
	  el.dispatchEvent(e);
	}
  
	/*  */
  
	// recursively search for possible transition defined inside the component root
	function locateNode (vnode) {
	  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
		? locateNode(vnode.componentInstance._vnode)
		: vnode
	}
  
	var show = {
	  bind: function bind (el, ref, vnode) {
		var value = ref.value;
  
		vnode = locateNode(vnode);
		var transition$$1 = vnode.data && vnode.data.transition;
		var originalDisplay = el.__vOriginalDisplay =
		  el.style.display === 'none' ? '' : el.style.display;
		if (value && transition$$1) {
		  vnode.data.show = true;
		  enter(vnode, function () {
			el.style.display = originalDisplay;
		  });
		} else {
		  el.style.display = value ? originalDisplay : 'none';
		}
	  },
  
	  update: function update (el, ref, vnode) {
		var value = ref.value;
		var oldValue = ref.oldValue;
  
		/* istanbul ignore if */
		if (!value === !oldValue) { return }
		vnode = locateNode(vnode);
		var transition$$1 = vnode.data && vnode.data.transition;
		if (transition$$1) {
		  vnode.data.show = true;
		  if (value) {
			enter(vnode, function () {
			  el.style.display = el.__vOriginalDisplay;
			});
		  } else {
			leave(vnode, function () {
			  el.style.display = 'none';
			});
		  }
		} else {
		  el.style.display = value ? el.__vOriginalDisplay : 'none';
		}
	  },
  
	  unbind: function unbind (
		el,
		binding,
		vnode,
		oldVnode,
		isDestroy
	  ) {
		if (!isDestroy) {
		  el.style.display = el.__vOriginalDisplay;
		}
	  }
	};
  
	var platformDirectives = {
	  model: directive,
	  show: show
	};
  
	/*  */
  
	var transitionProps = {
	  name: String,
	  appear: Boolean,
	  css: Boolean,
	  mode: String,
	  type: String,
	  enterClass: String,
	  leaveClass: String,
	  enterToClass: String,
	  leaveToClass: String,
	  enterActiveClass: String,
	  leaveActiveClass: String,
	  appearClass: String,
	  appearActiveClass: String,
	  appearToClass: String,
	  duration: [Number, String, Object]
	};
  
	// in case the child is also an abstract component, e.g. <keep-alive>
	// we want to recursively retrieve the real component to be rendered
	function getRealChild (vnode) {
	  var compOptions = vnode && vnode.componentOptions;
	  if (compOptions && compOptions.Ctor.options.abstract) {
		return getRealChild(getFirstComponentChild(compOptions.children))
	  } else {
		return vnode
	  }
	}
  
	function extractTransitionData (comp) {
	  var data = {};
	  var options = comp.$options;
	  // props
	  for (var key in options.propsData) {
		data[key] = comp[key];
	  }
	  // events.
	  // extract listeners and pass them directly to the transition methods
	  var listeners = options._parentListeners;
	  for (var key$1 in listeners) {
		data[camelize(key$1)] = listeners[key$1];
	  }
	  return data
	}
  
	function placeholder (h, rawChild) {
	  if (/\d-keep-alive$/.test(rawChild.tag)) {
		return h('keep-alive', {
		  props: rawChild.componentOptions.propsData
		})
	  }
	}
  
	function hasParentTransition (vnode) {
	  while ((vnode = vnode.parent)) {
		if (vnode.data.transition) {
		  return true
		}
	  }
	}
  
	function isSameChild (child, oldChild) {
	  return oldChild.key === child.key && oldChild.tag === child.tag
	}
  
	var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
  
	var isVShowDirective = function (d) { return d.name === 'show'; };
  
	var Transition = {
	  name: 'transition',
	  props: transitionProps,
	  abstract: true,
  
	  render: function render (h) {
		var this$1 = this;
  
		var children = this.$slots.default;
		if (!children) {
		  return
		}
  
		// filter out text nodes (possible whitespaces)
		children = children.filter(isNotTextNode);
		/* istanbul ignore if */
		if (!children.length) {
		  return
		}
  
		// warn multiple elements
		if (children.length > 1) {
		  warn(
			'<transition> can only be used on a single element. Use ' +
			'<transition-group> for lists.',
			this.$parent
		  );
		}
  
		var mode = this.mode;
  
		// warn invalid mode
		if (mode && mode !== 'in-out' && mode !== 'out-in'
		) {
		  warn(
			'invalid <transition> mode: ' + mode,
			this.$parent
		  );
		}
  
		var rawChild = children[0];
  
		// if this is a component root node and the component's
		// parent container node also has transition, skip.
		if (hasParentTransition(this.$vnode)) {
		  return rawChild
		}
  
		// apply transition data to child
		// use getRealChild() to ignore abstract components e.g. keep-alive
		var child = getRealChild(rawChild);
		/* istanbul ignore if */
		if (!child) {
		  return rawChild
		}
  
		if (this._leaving) {
		  return placeholder(h, rawChild)
		}
  
		// ensure a key that is unique to the vnode type and to this transition
		// component instance. This key will be used to remove pending leaving nodes
		// during entering.
		var id = "__transition-" + (this._uid) + "-";
		child.key = child.key == null
		  ? child.isComment
			? id + 'comment'
			: id + child.tag
		  : isPrimitive(child.key)
			? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
			: child.key;
  
		var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
		var oldRawChild = this._vnode;
		var oldChild = getRealChild(oldRawChild);
  
		// mark v-show
		// so that the transition module can hand over the control to the directive
		if (child.data.directives && child.data.directives.some(isVShowDirective)) {
		  child.data.show = true;
		}
  
		if (
		  oldChild &&
		  oldChild.data &&
		  !isSameChild(child, oldChild) &&
		  !isAsyncPlaceholder(oldChild) &&
		  // #6687 component root is a comment node
		  !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
		) {
		  // replace old child transition data with fresh one
		  // important for dynamic transitions!
		  var oldData = oldChild.data.transition = extend({}, data);
		  // handle transition mode
		  if (mode === 'out-in') {
			// return placeholder node and queue update when leave finishes
			this._leaving = true;
			mergeVNodeHook(oldData, 'afterLeave', function () {
			  this$1._leaving = false;
			  this$1.$forceUpdate();
			});
			return placeholder(h, rawChild)
		  } else if (mode === 'in-out') {
			if (isAsyncPlaceholder(child)) {
			  return oldRawChild
			}
			var delayedLeave;
			var performLeave = function () { delayedLeave(); };
			mergeVNodeHook(data, 'afterEnter', performLeave);
			mergeVNodeHook(data, 'enterCancelled', performLeave);
			mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
		  }
		}
  
		return rawChild
	  }
	};
  
	/*  */
  
	var props = extend({
	  tag: String,
	  moveClass: String
	}, transitionProps);
  
	delete props.mode;
  
	var TransitionGroup = {
	  props: props,
  
	  beforeMount: function beforeMount () {
		var this$1 = this;
  
		var update = this._update;
		this._update = function (vnode, hydrating) {
		  var restoreActiveInstance = setActiveInstance(this$1);
		  // force removing pass
		  this$1.__patch__(
			this$1._vnode,
			this$1.kept,
			false, // hydrating
			true // removeOnly (!important, avoids unnecessary moves)
		  );
		  this$1._vnode = this$1.kept;
		  restoreActiveInstance();
		  update.call(this$1, vnode, hydrating);
		};
	  },
  
	  render: function render (h) {
		var tag = this.tag || this.$vnode.data.tag || 'span';
		var map = Object.create(null);
		var prevChildren = this.prevChildren = this.children;
		var rawChildren = this.$slots.default || [];
		var children = this.children = [];
		var transitionData = extractTransitionData(this);
  
		for (var i = 0; i < rawChildren.length; i++) {
		  var c = rawChildren[i];
		  if (c.tag) {
			if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
			  children.push(c);
			  map[c.key] = c
			  ;(c.data || (c.data = {})).transition = transitionData;
			} else {
			  var opts = c.componentOptions;
			  var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
			  warn(("<transition-group> children must be keyed: <" + name + ">"));
			}
		  }
		}
  
		if (prevChildren) {
		  var kept = [];
		  var removed = [];
		  for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
			var c$1 = prevChildren[i$1];
			c$1.data.transition = transitionData;
			c$1.data.pos = c$1.elm.getBoundingClientRect();
			if (map[c$1.key]) {
			  kept.push(c$1);
			} else {
			  removed.push(c$1);
			}
		  }
		  this.kept = h(tag, null, kept);
		  this.removed = removed;
		}
  
		return h(tag, null, children)
	  },
  
	  updated: function updated () {
		var children = this.prevChildren;
		var moveClass = this.moveClass || ((this.name || 'v') + '-move');
		if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
		  return
		}
  
		// we divide the work into three loops to avoid mixing DOM reads and writes
		// in each iteration - which helps prevent layout thrashing.
		children.forEach(callPendingCbs);
		children.forEach(recordPosition);
		children.forEach(applyTranslation);
  
		// force reflow to put everything in position
		// assign to this to avoid being removed in tree-shaking
		// $flow-disable-line
		this._reflow = document.body.offsetHeight;
  
		children.forEach(function (c) {
		  if (c.data.moved) {
			var el = c.elm;
			var s = el.style;
			addTransitionClass(el, moveClass);
			s.transform = s.WebkitTransform = s.transitionDuration = '';
			el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
			  if (e && e.target !== el) {
				return
			  }
			  if (!e || /transform$/.test(e.propertyName)) {
				el.removeEventListener(transitionEndEvent, cb);
				el._moveCb = null;
				removeTransitionClass(el, moveClass);
			  }
			});
		  }
		});
	  },
  
	  methods: {
		hasMove: function hasMove (el, moveClass) {
		  /* istanbul ignore if */
		  if (!hasTransition) {
			return false
		  }
		  /* istanbul ignore if */
		  if (this._hasMove) {
			return this._hasMove
		  }
		  // Detect whether an element with the move class applied has
		  // CSS transitions. Since the element may be inside an entering
		  // transition at this very moment, we make a clone of it and remove
		  // all other transition classes applied to ensure only the move class
		  // is applied.
		  var clone = el.cloneNode();
		  if (el._transitionClasses) {
			el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
		  }
		  addClass(clone, moveClass);
		  clone.style.display = 'none';
		  this.$el.appendChild(clone);
		  var info = getTransitionInfo(clone);
		  this.$el.removeChild(clone);
		  return (this._hasMove = info.hasTransform)
		}
	  }
	};
  
	function callPendingCbs (c) {
	  /* istanbul ignore if */
	  if (c.elm._moveCb) {
		c.elm._moveCb();
	  }
	  /* istanbul ignore if */
	  if (c.elm._enterCb) {
		c.elm._enterCb();
	  }
	}
  
	function recordPosition (c) {
	  c.data.newPos = c.elm.getBoundingClientRect();
	}
  
	function applyTranslation (c) {
	  var oldPos = c.data.pos;
	  var newPos = c.data.newPos;
	  var dx = oldPos.left - newPos.left;
	  var dy = oldPos.top - newPos.top;
	  if (dx || dy) {
		c.data.moved = true;
		var s = c.elm.style;
		s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
		s.transitionDuration = '0s';
	  }
	}
  
	var platformComponents = {
	  Transition: Transition,
	  TransitionGroup: TransitionGroup
	};
  
	/*  */
  
	// install platform specific utils
	Vue.config.mustUseProp = mustUseProp;
	Vue.config.isReservedTag = isReservedTag;
	Vue.config.isReservedAttr = isReservedAttr;
	Vue.config.getTagNamespace = getTagNamespace;
	Vue.config.isUnknownElement = isUnknownElement;
  
	// install platform runtime directives & components
	extend(Vue.options.directives, platformDirectives);
	extend(Vue.options.components, platformComponents);
  
	// install platform patch function
	Vue.prototype.__patch__ = inBrowser ? patch : noop;
  
	// public mount method
	Vue.prototype.$mount = function (
	  el,
	  hydrating
	) {
	  el = el && inBrowser ? query(el) : undefined;
	  return mountComponent(this, el, hydrating)
	};
  
	// devtools global hook
	/* istanbul ignore next */
	if (inBrowser) {
	  setTimeout(function () {
		if (config.devtools) {
		  if (devtools) {
			devtools.emit('init', Vue);
		  } else {
			console[console.info ? 'info' : 'log'](
			  'Download the Vue Devtools extension for a better development experience:\n' +
			  'https://github.com/vuejs/vue-devtools'
			);
		  }
		}
		if (config.productionTip !== false &&
		  typeof console !== 'undefined'
		) {
		  console[console.info ? 'info' : 'log'](
			"You are running Vue in development mode.\n" +
			"Make sure to turn on production mode when deploying for production.\n" +
			"See more tips at https://vuejs.org/guide/deployment.html"
		  );
		}
	  }, 0);
	}
  
	/*  */
  
	var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
	var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
  
	var buildRegex = cached(function (delimiters) {
	  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
	  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
	  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
	});
  
  
  
	function parseText (
	  text,
	  delimiters
	) {
	  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
	  if (!tagRE.test(text)) {
		return
	  }
	  var tokens = [];
	  var rawTokens = [];
	  var lastIndex = tagRE.lastIndex = 0;
	  var match, index, tokenValue;
	  while ((match = tagRE.exec(text))) {
		index = match.index;
		// push text token
		if (index > lastIndex) {
		  rawTokens.push(tokenValue = text.slice(lastIndex, index));
		  tokens.push(JSON.stringify(tokenValue));
		}
		// tag token
		var exp = parseFilters(match[1].trim());
		tokens.push(("_s(" + exp + ")"));
		rawTokens.push({ '@binding': exp });
		lastIndex = index + match[0].length;
	  }
	  if (lastIndex < text.length) {
		rawTokens.push(tokenValue = text.slice(lastIndex));
		tokens.push(JSON.stringify(tokenValue));
	  }
	  return {
		expression: tokens.join('+'),
		tokens: rawTokens
	  }
	}
  
	/*  */
  
	function transformNode (el, options) {
	  var warn = options.warn || baseWarn;
	  var staticClass = getAndRemoveAttr(el, 'class');
	  if (staticClass) {
		var res = parseText(staticClass, options.delimiters);
		if (res) {
		  warn(
			"class=\"" + staticClass + "\": " +
			'Interpolation inside attributes has been removed. ' +
			'Use v-bind or the colon shorthand instead. For example, ' +
			'instead of <div class="{{ val }}">, use <div :class="val">.',
			el.rawAttrsMap['class']
		  );
		}
	  }
	  if (staticClass) {
		el.staticClass = JSON.stringify(staticClass);
	  }
	  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
	  if (classBinding) {
		el.classBinding = classBinding;
	  }
	}
  
	function genData (el) {
	  var data = '';
	  if (el.staticClass) {
		data += "staticClass:" + (el.staticClass) + ",";
	  }
	  if (el.classBinding) {
		data += "class:" + (el.classBinding) + ",";
	  }
	  return data
	}
  
	var klass$1 = {
	  staticKeys: ['staticClass'],
	  transformNode: transformNode,
	  genData: genData
	};
  
	/*  */
  
	function transformNode$1 (el, options) {
	  var warn = options.warn || baseWarn;
	  var staticStyle = getAndRemoveAttr(el, 'style');
	  if (staticStyle) {
		/* istanbul ignore if */
		{
		  var res = parseText(staticStyle, options.delimiters);
		  if (res) {
			warn(
			  "style=\"" + staticStyle + "\": " +
			  'Interpolation inside attributes has been removed. ' +
			  'Use v-bind or the colon shorthand instead. For example, ' +
			  'instead of <div style="{{ val }}">, use <div :style="val">.',
			  el.rawAttrsMap['style']
			);
		  }
		}
		el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
	  }
  
	  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
	  if (styleBinding) {
		el.styleBinding = styleBinding;
	  }
	}
  
	function genData$1 (el) {
	  var data = '';
	  if (el.staticStyle) {
		data += "staticStyle:" + (el.staticStyle) + ",";
	  }
	  if (el.styleBinding) {
		data += "style:(" + (el.styleBinding) + "),";
	  }
	  return data
	}
  
	var style$1 = {
	  staticKeys: ['staticStyle'],
	  transformNode: transformNode$1,
	  genData: genData$1
	};
  
	/*  */
  
	var decoder;
  
	var he = {
	  decode: function decode (html) {
		decoder = decoder || document.createElement('div');
		decoder.innerHTML = html;
		return decoder.textContent
	  }
	};
  
	/*  */
  
	var isUnaryTag = makeMap(
	  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
	  'link,meta,param,source,track,wbr'
	);
  
	// Elements that you can, intentionally, leave open
	// (and which close themselves)
	var canBeLeftOpenTag = makeMap(
	  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
	);
  
	// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
	// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
	var isNonPhrasingTag = makeMap(
	  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
	  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
	  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
	  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
	  'title,tr,track'
	);
  
	/**
	 * Not type-checking this file because it's mostly vendor code.
	 */
  
	// Regular Expressions for parsing tags and attributes
	var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
	var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+?\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
	var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
	var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
	var startTagOpen = new RegExp(("^<" + qnameCapture));
	var startTagClose = /^\s*(\/?)>/;
	var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
	var doctype = /^<!DOCTYPE [^>]+>/i;
	// #7298: escape - to avoid being passed as HTML comment when inlined in page
	var comment = /^<!\--/;
	var conditionalComment = /^<!\[/;
  
	// Special Elements (can contain anything)
	var isPlainTextElement = makeMap('script,style,textarea', true);
	var reCache = {};
  
	var decodingMap = {
	  '&lt;': '<',
	  '&gt;': '>',
	  '&quot;': '"',
	  '&amp;': '&',
	  '&#10;': '\n',
	  '&#9;': '\t',
	  '&#39;': "'"
	};
	var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
	var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
  
	// #5992
	var isIgnoreNewlineTag = makeMap('pre,textarea', true);
	var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
  
	function decodeAttr (value, shouldDecodeNewlines) {
	  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
	  return value.replace(re, function (match) { return decodingMap[match]; })
	}
  
	function parseHTML (html, options) {
	  var stack = [];
	  var expectHTML = options.expectHTML;
	  var isUnaryTag$$1 = options.isUnaryTag || no;
	  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
	  var index = 0;
	  var last, lastTag;
	  while (html) {
		last = html;
		// Make sure we're not in a plaintext content element like script/style
		if (!lastTag || !isPlainTextElement(lastTag)) {
		  var textEnd = html.indexOf('<');
		  if (textEnd === 0) {
			// Comment:
			if (comment.test(html)) {
			  var commentEnd = html.indexOf('-->');
  
			  if (commentEnd >= 0) {
				if (options.shouldKeepComment) {
				  options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
				}
				advance(commentEnd + 3);
				continue
			  }
			}
  
			// http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
			if (conditionalComment.test(html)) {
			  var conditionalEnd = html.indexOf(']>');
  
			  if (conditionalEnd >= 0) {
				advance(conditionalEnd + 2);
				continue
			  }
			}
  
			// Doctype:
			var doctypeMatch = html.match(doctype);
			if (doctypeMatch) {
			  advance(doctypeMatch[0].length);
			  continue
			}
  
			// End tag:
			var endTagMatch = html.match(endTag);
			if (endTagMatch) {
			  var curIndex = index;
			  advance(endTagMatch[0].length);
			  parseEndTag(endTagMatch[1], curIndex, index);
			  continue
			}
  
			// Start tag:
			var startTagMatch = parseStartTag();
			if (startTagMatch) {
			  handleStartTag(startTagMatch);
			  if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
				advance(1);
			  }
			  continue
			}
		  }
  
		  var text = (void 0), rest = (void 0), next = (void 0);
		  if (textEnd >= 0) {
			rest = html.slice(textEnd);
			while (
			  !endTag.test(rest) &&
			  !startTagOpen.test(rest) &&
			  !comment.test(rest) &&
			  !conditionalComment.test(rest)
			) {
			  // < in plain text, be forgiving and treat it as text
			  next = rest.indexOf('<', 1);
			  if (next < 0) { break }
			  textEnd += next;
			  rest = html.slice(textEnd);
			}
			text = html.substring(0, textEnd);
		  }
  
		  if (textEnd < 0) {
			text = html;
		  }
  
		  if (text) {
			advance(text.length);
		  }
  
		  if (options.chars && text) {
			options.chars(text, index - text.length, index);
		  }
		} else {
		  var endTagLength = 0;
		  var stackedTag = lastTag.toLowerCase();
		  var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
		  var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
			endTagLength = endTag.length;
			if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
			  text = text
				.replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
				.replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
			}
			if (shouldIgnoreFirstNewline(stackedTag, text)) {
			  text = text.slice(1);
			}
			if (options.chars) {
			  options.chars(text);
			}
			return ''
		  });
		  index += html.length - rest$1.length;
		  html = rest$1;
		  parseEndTag(stackedTag, index - endTagLength, index);
		}
  
		if (html === last) {
		  options.chars && options.chars(html);
		  if (!stack.length && options.warn) {
			options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
		  }
		  break
		}
	  }
  
	  // Clean up any remaining tags
	  parseEndTag();
  
	  function advance (n) {
		index += n;
		html = html.substring(n);
	  }
  
	  function parseStartTag () {
		var start = html.match(startTagOpen);
		if (start) {
		  var match = {
			tagName: start[1],
			attrs: [],
			start: index
		  };
		  advance(start[0].length);
		  var end, attr;
		  while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
			attr.start = index;
			advance(attr[0].length);
			attr.end = index;
			match.attrs.push(attr);
		  }
		  if (end) {
			match.unarySlash = end[1];
			advance(end[0].length);
			match.end = index;
			return match
		  }
		}
	  }
  
	  function handleStartTag (match) {
		var tagName = match.tagName;
		var unarySlash = match.unarySlash;
  
		if (expectHTML) {
		  if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
			parseEndTag(lastTag);
		  }
		  if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
			parseEndTag(tagName);
		  }
		}
  
		var unary = isUnaryTag$$1(tagName) || !!unarySlash;
  
		var l = match.attrs.length;
		var attrs = new Array(l);
		for (var i = 0; i < l; i++) {
		  var args = match.attrs[i];
		  var value = args[3] || args[4] || args[5] || '';
		  var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
			? options.shouldDecodeNewlinesForHref
			: options.shouldDecodeNewlines;
		  attrs[i] = {
			name: args[1],
			value: decodeAttr(value, shouldDecodeNewlines)
		  };
		  if (options.outputSourceRange) {
			attrs[i].start = args.start + args[0].match(/^\s*/).length;
			attrs[i].end = args.end;
		  }
		}
  
		if (!unary) {
		  stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
		  lastTag = tagName;
		}
  
		if (options.start) {
		  options.start(tagName, attrs, unary, match.start, match.end);
		}
	  }
  
	  function parseEndTag (tagName, start, end) {
		var pos, lowerCasedTagName;
		if (start == null) { start = index; }
		if (end == null) { end = index; }
  
		// Find the closest opened tag of the same type
		if (tagName) {
		  lowerCasedTagName = tagName.toLowerCase();
		  for (pos = stack.length - 1; pos >= 0; pos--) {
			if (stack[pos].lowerCasedTag === lowerCasedTagName) {
			  break
			}
		  }
		} else {
		  // If no tag name is provided, clean shop
		  pos = 0;
		}
  
		if (pos >= 0) {
		  // Close all the open elements, up the stack
		  for (var i = stack.length - 1; i >= pos; i--) {
			if (i > pos || !tagName &&
			  options.warn
			) {
			  options.warn(
				("tag <" + (stack[i].tag) + "> has no matching end tag."),
				{ start: stack[i].start, end: stack[i].end }
			  );
			}
			if (options.end) {
			  options.end(stack[i].tag, start, end);
			}
		  }
  
		  // Remove the open elements from the stack
		  stack.length = pos;
		  lastTag = pos && stack[pos - 1].tag;
		} else if (lowerCasedTagName === 'br') {
		  if (options.start) {
			options.start(tagName, [], true, start, end);
		  }
		} else if (lowerCasedTagName === 'p') {
		  if (options.start) {
			options.start(tagName, [], false, start, end);
		  }
		  if (options.end) {
			options.end(tagName, start, end);
		  }
		}
	  }
	}
  
	/*  */
  
	var onRE = /^@|^v-on:/;
	var dirRE = /^v-|^@|^:|^#/;
	var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
	var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
	var stripParensRE = /^\(|\)$/g;
	var dynamicArgRE = /^\[.*\]$/;
  
	var argRE = /:(.*)$/;
	var bindRE = /^:|^\.|^v-bind:/;
	var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
  
	var slotRE = /^v-slot(:|$)|^#/;
  
	var lineBreakRE = /[\r\n]/;
	var whitespaceRE$1 = /[ \f\t\r\n]+/g;
  
	var invalidAttributeRE = /[\s"'<>\/=]/;
  
	var decodeHTMLCached = cached(he.decode);
  
	var emptySlotScopeToken = "_empty_";
  
	// configurable state
	var warn$2;
	var delimiters;
	var transforms;
	var preTransforms;
	var postTransforms;
	var platformIsPreTag;
	var platformMustUseProp;
	var platformGetTagNamespace;
	var maybeComponent;
  
	function createASTElement (
	  tag,
	  attrs,
	  parent
	) {
	  return {
		type: 1,
		tag: tag,
		attrsList: attrs,
		attrsMap: makeAttrsMap(attrs),
		rawAttrsMap: {},
		parent: parent,
		children: []
	  }
	}
  
	/**
	 * Convert HTML string to AST.
	 */
	function parse (
	  template,
	  options
	) {
	  warn$2 = options.warn || baseWarn;
  
	  platformIsPreTag = options.isPreTag || no;
	  platformMustUseProp = options.mustUseProp || no;
	  platformGetTagNamespace = options.getTagNamespace || no;
	  var isReservedTag = options.isReservedTag || no;
	  maybeComponent = function (el) { return !!(
		el.component ||
		el.attrsMap[':is'] ||
		el.attrsMap['v-bind:is'] ||
		!(el.attrsMap.is ? isReservedTag(el.attrsMap.is) : isReservedTag(el.tag))
	  ); };
	  transforms = pluckModuleFunction(options.modules, 'transformNode');
	  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
	  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
  
	  delimiters = options.delimiters;
  
	  var stack = [];
	  var preserveWhitespace = options.preserveWhitespace !== false;
	  var whitespaceOption = options.whitespace;
	  var root;
	  var currentParent;
	  var inVPre = false;
	  var inPre = false;
	  var warned = false;
  
	  function warnOnce (msg, range) {
		if (!warned) {
		  warned = true;
		  warn$2(msg, range);
		}
	  }
  
	  function closeElement (element) {
		trimEndingWhitespace(element);
		if (!inVPre && !element.processed) {
		  element = processElement(element, options);
		}
		// tree management
		if (!stack.length && element !== root) {
		  // allow root elements with v-if, v-else-if and v-else
		  if (root.if && (element.elseif || element.else)) {
			{
			  checkRootConstraints(element);
			}
			addIfCondition(root, {
			  exp: element.elseif,
			  block: element
			});
		  } else {
			warnOnce(
			  "Component template should contain exactly one root element. " +
			  "If you are using v-if on multiple elements, " +
			  "use v-else-if to chain them instead.",
			  { start: element.start }
			);
		  }
		}
		if (currentParent && !element.forbidden) {
		  if (element.elseif || element.else) {
			processIfConditions(element, currentParent);
		  } else {
			if (element.slotScope) {
			  // scoped slot
			  // keep it in the children list so that v-else(-if) conditions can
			  // find it as the prev node.
			  var name = element.slotTarget || '"default"'
			  ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
			}
			currentParent.children.push(element);
			element.parent = currentParent;
		  }
		}
  
		// final children cleanup
		// filter out scoped slots
		element.children = element.children.filter(function (c) { return !(c).slotScope; });
		// remove trailing whitespace node again
		trimEndingWhitespace(element);
  
		// check pre state
		if (element.pre) {
		  inVPre = false;
		}
		if (platformIsPreTag(element.tag)) {
		  inPre = false;
		}
		// apply post-transforms
		for (var i = 0; i < postTransforms.length; i++) {
		  postTransforms[i](element, options);
		}
	  }
  
	  function trimEndingWhitespace (el) {
		// remove trailing whitespace node
		if (!inPre) {
		  var lastNode;
		  while (
			(lastNode = el.children[el.children.length - 1]) &&
			lastNode.type === 3 &&
			lastNode.text === ' '
		  ) {
			el.children.pop();
		  }
		}
	  }
  
	  function checkRootConstraints (el) {
		if (el.tag === 'slot' || el.tag === 'template') {
		  warnOnce(
			"Cannot use <" + (el.tag) + "> as component root element because it may " +
			'contain multiple nodes.',
			{ start: el.start }
		  );
		}
		if (el.attrsMap.hasOwnProperty('v-for')) {
		  warnOnce(
			'Cannot use v-for on stateful component root element because ' +
			'it renders multiple elements.',
			el.rawAttrsMap['v-for']
		  );
		}
	  }
  
	  parseHTML(template, {
		warn: warn$2,
		expectHTML: options.expectHTML,
		isUnaryTag: options.isUnaryTag,
		canBeLeftOpenTag: options.canBeLeftOpenTag,
		shouldDecodeNewlines: options.shouldDecodeNewlines,
		shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
		shouldKeepComment: options.comments,
		outputSourceRange: options.outputSourceRange,
		start: function start (tag, attrs, unary, start$1, end) {
		  // check namespace.
		  // inherit parent ns if there is one
		  var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
  
		  // handle IE svg bug
		  /* istanbul ignore if */
		  if (isIE && ns === 'svg') {
			attrs = guardIESVGBug(attrs);
		  }
  
		  var element = createASTElement(tag, attrs, currentParent);
		  if (ns) {
			element.ns = ns;
		  }
  
		  {
			if (options.outputSourceRange) {
			  element.start = start$1;
			  element.end = end;
			  element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
				cumulated[attr.name] = attr;
				return cumulated
			  }, {});
			}
			attrs.forEach(function (attr) {
			  if (invalidAttributeRE.test(attr.name)) {
				warn$2(
				  "Invalid dynamic argument expression: attribute names cannot contain " +
				  "spaces, quotes, <, >, / or =.",
				  {
					start: attr.start + attr.name.indexOf("["),
					end: attr.start + attr.name.length
				  }
				);
			  }
			});
		  }
  
		  if (isForbiddenTag(element) && !isServerRendering()) {
			element.forbidden = true;
			warn$2(
			  'Templates should only be responsible for mapping the state to the ' +
			  'UI. Avoid placing tags with side-effects in your templates, such as ' +
			  "<" + tag + ">" + ', as they will not be parsed.',
			  { start: element.start }
			);
		  }
  
		  // apply pre-transforms
		  for (var i = 0; i < preTransforms.length; i++) {
			element = preTransforms[i](element, options) || element;
		  }
  
		  if (!inVPre) {
			processPre(element);
			if (element.pre) {
			  inVPre = true;
			}
		  }
		  if (platformIsPreTag(element.tag)) {
			inPre = true;
		  }
		  if (inVPre) {
			processRawAttrs(element);
		  } else if (!element.processed) {
			// structural directives
			processFor(element);
			processIf(element);
			processOnce(element);
		  }
  
		  if (!root) {
			root = element;
			{
			  checkRootConstraints(root);
			}
		  }
  
		  if (!unary) {
			currentParent = element;
			stack.push(element);
		  } else {
			closeElement(element);
		  }
		},
  
		end: function end (tag, start, end$1) {
		  var element = stack[stack.length - 1];
		  // pop stack
		  stack.length -= 1;
		  currentParent = stack[stack.length - 1];
		  if (options.outputSourceRange) {
			element.end = end$1;
		  }
		  closeElement(element);
		},
  
		chars: function chars (text, start, end) {
		  if (!currentParent) {
			{
			  if (text === template) {
				warnOnce(
				  'Component template requires a root element, rather than just text.',
				  { start: start }
				);
			  } else if ((text = text.trim())) {
				warnOnce(
				  ("text \"" + text + "\" outside root element will be ignored."),
				  { start: start }
				);
			  }
			}
			return
		  }
		  // IE textarea placeholder bug
		  /* istanbul ignore if */
		  if (isIE &&
			currentParent.tag === 'textarea' &&
			currentParent.attrsMap.placeholder === text
		  ) {
			return
		  }
		  var children = currentParent.children;
		  if (inPre || text.trim()) {
			text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
		  } else if (!children.length) {
			// remove the whitespace-only node right after an opening tag
			text = '';
		  } else if (whitespaceOption) {
			if (whitespaceOption === 'condense') {
			  // in condense mode, remove the whitespace node if it contains
			  // line break, otherwise condense to a single space
			  text = lineBreakRE.test(text) ? '' : ' ';
			} else {
			  text = ' ';
			}
		  } else {
			text = preserveWhitespace ? ' ' : '';
		  }
		  if (text) {
			if (!inPre && whitespaceOption === 'condense') {
			  // condense consecutive whitespaces into single space
			  text = text.replace(whitespaceRE$1, ' ');
			}
			var res;
			var child;
			if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
			  child = {
				type: 2,
				expression: res.expression,
				tokens: res.tokens,
				text: text
			  };
			} else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
			  child = {
				type: 3,
				text: text
			  };
			}
			if (child) {
			  if (options.outputSourceRange) {
				child.start = start;
				child.end = end;
			  }
			  children.push(child);
			}
		  }
		},
		comment: function comment (text, start, end) {
		  // adding anything as a sibling to the root node is forbidden
		  // comments should still be allowed, but ignored
		  if (currentParent) {
			var child = {
			  type: 3,
			  text: text,
			  isComment: true
			};
			if (options.outputSourceRange) {
			  child.start = start;
			  child.end = end;
			}
			currentParent.children.push(child);
		  }
		}
	  });
	  return root
	}
  
	function processPre (el) {
	  if (getAndRemoveAttr(el, 'v-pre') != null) {
		el.pre = true;
	  }
	}
  
	function processRawAttrs (el) {
	  var list = el.attrsList;
	  var len = list.length;
	  if (len) {
		var attrs = el.attrs = new Array(len);
		for (var i = 0; i < len; i++) {
		  attrs[i] = {
			name: list[i].name,
			value: JSON.stringify(list[i].value)
		  };
		  if (list[i].start != null) {
			attrs[i].start = list[i].start;
			attrs[i].end = list[i].end;
		  }
		}
	  } else if (!el.pre) {
		// non root node in pre blocks with no attributes
		el.plain = true;
	  }
	}
  
	function processElement (
	  element,
	  options
	) {
	  processKey(element);
  
	  // determine whether this is a plain element after
	  // removing structural attributes
	  element.plain = (
		!element.key &&
		!element.scopedSlots &&
		!element.attrsList.length
	  );
  
	  processRef(element);
	  processSlotContent(element);
	  processSlotOutlet(element);
	  processComponent(element);
	  for (var i = 0; i < transforms.length; i++) {
		element = transforms[i](element, options) || element;
	  }
	  processAttrs(element);
	  return element
	}
  
	function processKey (el) {
	  var exp = getBindingAttr(el, 'key');
	  if (exp) {
		{
		  if (el.tag === 'template') {
			warn$2(
			  "<template> cannot be keyed. Place the key on real elements instead.",
			  getRawBindingAttr(el, 'key')
			);
		  }
		  if (el.for) {
			var iterator = el.iterator2 || el.iterator1;
			var parent = el.parent;
			if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
			  warn$2(
				"Do not use v-for index as key on <transition-group> children, " +
				"this is the same as not using keys.",
				getRawBindingAttr(el, 'key'),
				true /* tip */
			  );
			}
		  }
		}
		el.key = exp;
	  }
	}
  
	function processRef (el) {
	  var ref = getBindingAttr(el, 'ref');
	  if (ref) {
		el.ref = ref;
		el.refInFor = checkInFor(el);
	  }
	}
  
	function processFor (el) {
	  var exp;
	  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
		var res = parseFor(exp);
		if (res) {
		  extend(el, res);
		} else {
		  warn$2(
			("Invalid v-for expression: " + exp),
			el.rawAttrsMap['v-for']
		  );
		}
	  }
	}
  
  
  
	function parseFor (exp) {
	  var inMatch = exp.match(forAliasRE);
	  if (!inMatch) { return }
	  var res = {};
	  res.for = inMatch[2].trim();
	  var alias = inMatch[1].trim().replace(stripParensRE, '');
	  var iteratorMatch = alias.match(forIteratorRE);
	  if (iteratorMatch) {
		res.alias = alias.replace(forIteratorRE, '').trim();
		res.iterator1 = iteratorMatch[1].trim();
		if (iteratorMatch[2]) {
		  res.iterator2 = iteratorMatch[2].trim();
		}
	  } else {
		res.alias = alias;
	  }
	  return res
	}
  
	function processIf (el) {
	  var exp = getAndRemoveAttr(el, 'v-if');
	  if (exp) {
		el.if = exp;
		addIfCondition(el, {
		  exp: exp,
		  block: el
		});
	  } else {
		if (getAndRemoveAttr(el, 'v-else') != null) {
		  el.else = true;
		}
		var elseif = getAndRemoveAttr(el, 'v-else-if');
		if (elseif) {
		  el.elseif = elseif;
		}
	  }
	}
  
	function processIfConditions (el, parent) {
	  var prev = findPrevElement(parent.children);
	  if (prev && prev.if) {
		addIfCondition(prev, {
		  exp: el.elseif,
		  block: el
		});
	  } else {
		warn$2(
		  "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
		  "used on element <" + (el.tag) + "> without corresponding v-if.",
		  el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
		);
	  }
	}
  
	function findPrevElement (children) {
	  var i = children.length;
	  while (i--) {
		if (children[i].type === 1) {
		  return children[i]
		} else {
		  if (children[i].text !== ' ') {
			warn$2(
			  "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
			  "will be ignored.",
			  children[i]
			);
		  }
		  children.pop();
		}
	  }
	}
  
	function addIfCondition (el, condition) {
	  if (!el.ifConditions) {
		el.ifConditions = [];
	  }
	  el.ifConditions.push(condition);
	}
  
	function processOnce (el) {
	  var once$$1 = getAndRemoveAttr(el, 'v-once');
	  if (once$$1 != null) {
		el.once = true;
	  }
	}
  
	// handle content being passed to a component as slot,
	// e.g. <template slot="xxx">, <div slot-scope="xxx">
	function processSlotContent (el) {
	  var slotScope;
	  if (el.tag === 'template') {
		slotScope = getAndRemoveAttr(el, 'scope');
		/* istanbul ignore if */
		if (slotScope) {
		  warn$2(
			"the \"scope\" attribute for scoped slots have been deprecated and " +
			"replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
			"can also be used on plain elements in addition to <template> to " +
			"denote scoped slots.",
			el.rawAttrsMap['scope'],
			true
		  );
		}
		el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
	  } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
		/* istanbul ignore if */
		if (el.attrsMap['v-for']) {
		  warn$2(
			"Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
			"(v-for takes higher priority). Use a wrapper <template> for the " +
			"scoped slot to make it clearer.",
			el.rawAttrsMap['slot-scope'],
			true
		  );
		}
		el.slotScope = slotScope;
	  }
  
	  // slot="xxx"
	  var slotTarget = getBindingAttr(el, 'slot');
	  if (slotTarget) {
		el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
		el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
		// preserve slot as an attribute for native shadow DOM compat
		// only for non-scoped slots.
		if (el.tag !== 'template' && !el.slotScope) {
		  addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
		}
	  }
  
	  // 2.6 v-slot syntax
	  {
		if (el.tag === 'template') {
		  // v-slot on <template>
		  var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
		  if (slotBinding) {
			{
			  if (el.slotTarget || el.slotScope) {
				warn$2(
				  "Unexpected mixed usage of different slot syntaxes.",
				  el
				);
			  }
			  if (el.parent && !maybeComponent(el.parent)) {
				warn$2(
				  "<template v-slot> can only appear at the root level inside " +
				  "the receiving component",
				  el
				);
			  }
			}
			var ref = getSlotName(slotBinding);
			var name = ref.name;
			var dynamic = ref.dynamic;
			el.slotTarget = name;
			el.slotTargetDynamic = dynamic;
			el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
		  }
		} else {
		  // v-slot on component, denotes default slot
		  var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
		  if (slotBinding$1) {
			{
			  if (!maybeComponent(el)) {
				warn$2(
				  "v-slot can only be used on components or <template>.",
				  slotBinding$1
				);
			  }
			  if (el.slotScope || el.slotTarget) {
				warn$2(
				  "Unexpected mixed usage of different slot syntaxes.",
				  el
				);
			  }
			  if (el.scopedSlots) {
				warn$2(
				  "To avoid scope ambiguity, the default slot should also use " +
				  "<template> syntax when there are other named slots.",
				  slotBinding$1
				);
			  }
			}
			// add the component's children to its default slot
			var slots = el.scopedSlots || (el.scopedSlots = {});
			var ref$1 = getSlotName(slotBinding$1);
			var name$1 = ref$1.name;
			var dynamic$1 = ref$1.dynamic;
			var slotContainer = slots[name$1] = createASTElement('template', [], el);
			slotContainer.slotTarget = name$1;
			slotContainer.slotTargetDynamic = dynamic$1;
			slotContainer.children = el.children.filter(function (c) {
			  if (!c.slotScope) {
				c.parent = slotContainer;
				return true
			  }
			});
			slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
			// remove children as they are returned from scopedSlots now
			el.children = [];
			// mark el non-plain so data gets generated
			el.plain = false;
		  }
		}
	  }
	}
  
	function getSlotName (binding) {
	  var name = binding.name.replace(slotRE, '');
	  if (!name) {
		if (binding.name[0] !== '#') {
		  name = 'default';
		} else {
		  warn$2(
			"v-slot shorthand syntax requires a slot name.",
			binding
		  );
		}
	  }
	  return dynamicArgRE.test(name)
		// dynamic [name]
		? { name: name.slice(1, -1), dynamic: true }
		// static name
		: { name: ("\"" + name + "\""), dynamic: false }
	}
  
	// handle <slot/> outlets
	function processSlotOutlet (el) {
	  if (el.tag === 'slot') {
		el.slotName = getBindingAttr(el, 'name');
		if (el.key) {
		  warn$2(
			"`key` does not work on <slot> because slots are abstract outlets " +
			"and can possibly expand into multiple elements. " +
			"Use the key on a wrapping element instead.",
			getRawBindingAttr(el, 'key')
		  );
		}
	  }
	}
  
	function processComponent (el) {
	  var binding;
	  if ((binding = getBindingAttr(el, 'is'))) {
		el.component = binding;
	  }
	  if (getAndRemoveAttr(el, 'inline-template') != null) {
		el.inlineTemplate = true;
	  }
	}
  
	function processAttrs (el) {
	  var list = el.attrsList;
	  var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
	  for (i = 0, l = list.length; i < l; i++) {
		name = rawName = list[i].name;
		value = list[i].value;
		if (dirRE.test(name)) {
		  // mark element as dynamic
		  el.hasBindings = true;
		  // modifiers
		  modifiers = parseModifiers(name.replace(dirRE, ''));
		  // support .foo shorthand syntax for the .prop modifier
		  if (modifiers) {
			name = name.replace(modifierRE, '');
		  }
		  if (bindRE.test(name)) { // v-bind
			name = name.replace(bindRE, '');
			value = parseFilters(value);
			isDynamic = dynamicArgRE.test(name);
			if (isDynamic) {
			  name = name.slice(1, -1);
			}
			if (
			  value.trim().length === 0
			) {
			  warn$2(
				("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
			  );
			}
			if (modifiers) {
			  if (modifiers.prop && !isDynamic) {
				name = camelize(name);
				if (name === 'innerHtml') { name = 'innerHTML'; }
			  }
			  if (modifiers.camel && !isDynamic) {
				name = camelize(name);
			  }
			  if (modifiers.sync) {
				syncGen = genAssignmentCode(value, "$event");
				if (!isDynamic) {
				  addHandler(
					el,
					("update:" + (camelize(name))),
					syncGen,
					null,
					false,
					warn$2,
					list[i]
				  );
				  if (hyphenate(name) !== camelize(name)) {
					addHandler(
					  el,
					  ("update:" + (hyphenate(name))),
					  syncGen,
					  null,
					  false,
					  warn$2,
					  list[i]
					);
				  }
				} else {
				  // handler w/ dynamic event name
				  addHandler(
					el,
					("\"update:\"+(" + name + ")"),
					syncGen,
					null,
					false,
					warn$2,
					list[i],
					true // dynamic
				  );
				}
			  }
			}
			if ((modifiers && modifiers.prop) || (
			  !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
			)) {
			  addProp(el, name, value, list[i], isDynamic);
			} else {
			  addAttr(el, name, value, list[i], isDynamic);
			}
		  } else if (onRE.test(name)) { // v-on
			name = name.replace(onRE, '');
			isDynamic = dynamicArgRE.test(name);
			if (isDynamic) {
			  name = name.slice(1, -1);
			}
			addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
		  } else { // normal directives
			name = name.replace(dirRE, '');
			// parse arg
			var argMatch = name.match(argRE);
			var arg = argMatch && argMatch[1];
			isDynamic = false;
			if (arg) {
			  name = name.slice(0, -(arg.length + 1));
			  if (dynamicArgRE.test(arg)) {
				arg = arg.slice(1, -1);
				isDynamic = true;
			  }
			}
			addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
			if (name === 'model') {
			  checkForAliasModel(el, value);
			}
		  }
		} else {
		  // literal attribute
		  {
			var res = parseText(value, delimiters);
			if (res) {
			  warn$2(
				name + "=\"" + value + "\": " +
				'Interpolation inside attributes has been removed. ' +
				'Use v-bind or the colon shorthand instead. For example, ' +
				'instead of <div id="{{ val }}">, use <div :id="val">.',
				list[i]
			  );
			}
		  }
		  addAttr(el, name, JSON.stringify(value), list[i]);
		  // #6887 firefox doesn't update muted state if set via attribute
		  // even immediately after element creation
		  if (!el.component &&
			  name === 'muted' &&
			  platformMustUseProp(el.tag, el.attrsMap.type, name)) {
			addProp(el, name, 'true', list[i]);
		  }
		}
	  }
	}
  
	function checkInFor (el) {
	  var parent = el;
	  while (parent) {
		if (parent.for !== undefined) {
		  return true
		}
		parent = parent.parent;
	  }
	  return false
	}
  
	function parseModifiers (name) {
	  var match = name.match(modifierRE);
	  if (match) {
		var ret = {};
		match.forEach(function (m) { ret[m.slice(1)] = true; });
		return ret
	  }
	}
  
	function makeAttrsMap (attrs) {
	  var map = {};
	  for (var i = 0, l = attrs.length; i < l; i++) {
		if (
		  map[attrs[i].name] && !isIE && !isEdge
		) {
		  warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
		}
		map[attrs[i].name] = attrs[i].value;
	  }
	  return map
	}
  
	// for script (e.g. type="x/template") or style, do not decode content
	function isTextTag (el) {
	  return el.tag === 'script' || el.tag === 'style'
	}
  
	function isForbiddenTag (el) {
	  return (
		el.tag === 'style' ||
		(el.tag === 'script' && (
		  !el.attrsMap.type ||
		  el.attrsMap.type === 'text/javascript'
		))
	  )
	}
  
	var ieNSBug = /^xmlns:NS\d+/;
	var ieNSPrefix = /^NS\d+:/;
  
	/* istanbul ignore next */
	function guardIESVGBug (attrs) {
	  var res = [];
	  for (var i = 0; i < attrs.length; i++) {
		var attr = attrs[i];
		if (!ieNSBug.test(attr.name)) {
		  attr.name = attr.name.replace(ieNSPrefix, '');
		  res.push(attr);
		}
	  }
	  return res
	}
  
	function checkForAliasModel (el, value) {
	  var _el = el;
	  while (_el) {
		if (_el.for && _el.alias === value) {
		  warn$2(
			"<" + (el.tag) + " v-model=\"" + value + "\">: " +
			"You are binding v-model directly to a v-for iteration alias. " +
			"This will not be able to modify the v-for source array because " +
			"writing to the alias is like modifying a function local variable. " +
			"Consider using an array of objects and use v-model on an object property instead.",
			el.rawAttrsMap['v-model']
		  );
		}
		_el = _el.parent;
	  }
	}
  
	/*  */
  
	function preTransformNode (el, options) {
	  if (el.tag === 'input') {
		var map = el.attrsMap;
		if (!map['v-model']) {
		  return
		}
  
		var typeBinding;
		if (map[':type'] || map['v-bind:type']) {
		  typeBinding = getBindingAttr(el, 'type');
		}
		if (!map.type && !typeBinding && map['v-bind']) {
		  typeBinding = "(" + (map['v-bind']) + ").type";
		}
  
		if (typeBinding) {
		  var ifCondition = getAndRemoveAttr(el, 'v-if', true);
		  var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
		  var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
		  var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
		  // 1. checkbox
		  var branch0 = cloneASTElement(el);
		  // process for on the main node
		  processFor(branch0);
		  addRawAttr(branch0, 'type', 'checkbox');
		  processElement(branch0, options);
		  branch0.processed = true; // prevent it from double-processed
		  branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
		  addIfCondition(branch0, {
			exp: branch0.if,
			block: branch0
		  });
		  // 2. add radio else-if condition
		  var branch1 = cloneASTElement(el);
		  getAndRemoveAttr(branch1, 'v-for', true);
		  addRawAttr(branch1, 'type', 'radio');
		  processElement(branch1, options);
		  addIfCondition(branch0, {
			exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
			block: branch1
		  });
		  // 3. other
		  var branch2 = cloneASTElement(el);
		  getAndRemoveAttr(branch2, 'v-for', true);
		  addRawAttr(branch2, ':type', typeBinding);
		  processElement(branch2, options);
		  addIfCondition(branch0, {
			exp: ifCondition,
			block: branch2
		  });
  
		  if (hasElse) {
			branch0.else = true;
		  } else if (elseIfCondition) {
			branch0.elseif = elseIfCondition;
		  }
  
		  return branch0
		}
	  }
	}
  
	function cloneASTElement (el) {
	  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
	}
  
	var model$1 = {
	  preTransformNode: preTransformNode
	};
  
	var modules$1 = [
	  klass$1,
	  style$1,
	  model$1
	];
  
	/*  */
  
	function text (el, dir) {
	  if (dir.value) {
		addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
	  }
	}
  
	/*  */
  
	function html (el, dir) {
	  if (dir.value) {
		addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
	  }
	}
  
	var directives$1 = {
	  model: model,
	  text: text,
	  html: html
	};
  
	/*  */
  
	var baseOptions = {
	  expectHTML: true,
	  modules: modules$1,
	  directives: directives$1,
	  isPreTag: isPreTag,
	  isUnaryTag: isUnaryTag,
	  mustUseProp: mustUseProp,
	  canBeLeftOpenTag: canBeLeftOpenTag,
	  isReservedTag: isReservedTag,
	  getTagNamespace: getTagNamespace,
	  staticKeys: genStaticKeys(modules$1)
	};
  
	/*  */
  
	var isStaticKey;
	var isPlatformReservedTag;
  
	var genStaticKeysCached = cached(genStaticKeys$1);
  
	/**
	 * Goal of the optimizer: walk the generated template AST tree
	 * and detect sub-trees that are purely static, i.e. parts of
	 * the DOM that never needs to change.
	 *
	 * Once we detect these sub-trees, we can:
	 *
	 * 1. Hoist them into constants, so that we no longer need to
	 *    create fresh nodes for them on each re-render;
	 * 2. Completely skip them in the patching process.
	 */
	function optimize (root, options) {
	  if (!root) { return }
	  isStaticKey = genStaticKeysCached(options.staticKeys || '');
	  isPlatformReservedTag = options.isReservedTag || no;
	  // first pass: mark all non-static nodes.
	  markStatic$1(root);
	  // second pass: mark static roots.
	  markStaticRoots(root, false);
	}
  
	function genStaticKeys$1 (keys) {
	  return makeMap(
		'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
		(keys ? ',' + keys : '')
	  )
	}
  
	function markStatic$1 (node) {
	  node.static = isStatic(node);
	  if (node.type === 1) {
		// do not make component slot content static. this avoids
		// 1. components not able to mutate slot nodes
		// 2. static slot content fails for hot-reloading
		if (
		  !isPlatformReservedTag(node.tag) &&
		  node.tag !== 'slot' &&
		  node.attrsMap['inline-template'] == null
		) {
		  return
		}
		for (var i = 0, l = node.children.length; i < l; i++) {
		  var child = node.children[i];
		  markStatic$1(child);
		  if (!child.static) {
			node.static = false;
		  }
		}
		if (node.ifConditions) {
		  for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
			var block = node.ifConditions[i$1].block;
			markStatic$1(block);
			if (!block.static) {
			  node.static = false;
			}
		  }
		}
	  }
	}
  
	function markStaticRoots (node, isInFor) {
	  if (node.type === 1) {
		if (node.static || node.once) {
		  node.staticInFor = isInFor;
		}
		// For a node to qualify as a static root, it should have children that
		// are not just static text. Otherwise the cost of hoisting out will
		// outweigh the benefits and it's better off to just always render it fresh.
		if (node.static && node.children.length && !(
		  node.children.length === 1 &&
		  node.children[0].type === 3
		)) {
		  node.staticRoot = true;
		  return
		} else {
		  node.staticRoot = false;
		}
		if (node.children) {
		  for (var i = 0, l = node.children.length; i < l; i++) {
			markStaticRoots(node.children[i], isInFor || !!node.for);
		  }
		}
		if (node.ifConditions) {
		  for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
			markStaticRoots(node.ifConditions[i$1].block, isInFor);
		  }
		}
	  }
	}
  
	function isStatic (node) {
	  if (node.type === 2) { // expression
		return false
	  }
	  if (node.type === 3) { // text
		return true
	  }
	  return !!(node.pre || (
		!node.hasBindings && // no dynamic bindings
		!node.if && !node.for && // not v-if or v-for or v-else
		!isBuiltInTag(node.tag) && // not a built-in
		isPlatformReservedTag(node.tag) && // not a component
		!isDirectChildOfTemplateFor(node) &&
		Object.keys(node).every(isStaticKey)
	  ))
	}
  
	function isDirectChildOfTemplateFor (node) {
	  while (node.parent) {
		node = node.parent;
		if (node.tag !== 'template') {
		  return false
		}
		if (node.for) {
		  return true
		}
	  }
	  return false
	}
  
	/*  */
  
	var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/;
	var fnInvokeRE = /\([^)]*?\);*$/;
	var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
  
	// KeyboardEvent.keyCode aliases
	var keyCodes = {
	  esc: 27,
	  tab: 9,
	  enter: 13,
	  space: 32,
	  up: 38,
	  left: 37,
	  right: 39,
	  down: 40,
	  'delete': [8, 46]
	};
  
	// KeyboardEvent.key aliases
	var keyNames = {
	  // #7880: IE11 and Edge use `Esc` for Escape key name.
	  esc: ['Esc', 'Escape'],
	  tab: 'Tab',
	  enter: 'Enter',
	  // #9112: IE11 uses `Spacebar` for Space key name.
	  space: [' ', 'Spacebar'],
	  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
	  up: ['Up', 'ArrowUp'],
	  left: ['Left', 'ArrowLeft'],
	  right: ['Right', 'ArrowRight'],
	  down: ['Down', 'ArrowDown'],
	  // #9112: IE11 uses `Del` for Delete key name.
	  'delete': ['Backspace', 'Delete', 'Del']
	};
  
	// #4868: modifiers that prevent the execution of the listener
	// need to explicitly return null so that we can determine whether to remove
	// the listener for .once
	var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
  
	var modifierCode = {
	  stop: '$event.stopPropagation();',
	  prevent: '$event.preventDefault();',
	  self: genGuard("$event.target !== $event.currentTarget"),
	  ctrl: genGuard("!$event.ctrlKey"),
	  shift: genGuard("!$event.shiftKey"),
	  alt: genGuard("!$event.altKey"),
	  meta: genGuard("!$event.metaKey"),
	  left: genGuard("'button' in $event && $event.button !== 0"),
	  middle: genGuard("'button' in $event && $event.button !== 1"),
	  right: genGuard("'button' in $event && $event.button !== 2")
	};
  
	function genHandlers (
	  events,
	  isNative
	) {
	  var prefix = isNative ? 'nativeOn:' : 'on:';
	  var staticHandlers = "";
	  var dynamicHandlers = "";
	  for (var name in events) {
		var handlerCode = genHandler(events[name]);
		if (events[name] && events[name].dynamic) {
		  dynamicHandlers += name + "," + handlerCode + ",";
		} else {
		  staticHandlers += "\"" + name + "\":" + handlerCode + ",";
		}
	  }
	  staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
	  if (dynamicHandlers) {
		return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
	  } else {
		return prefix + staticHandlers
	  }
	}
  
	function genHandler (handler) {
	  if (!handler) {
		return 'function(){}'
	  }
  
	  if (Array.isArray(handler)) {
		return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
	  }
  
	  var isMethodPath = simplePathRE.test(handler.value);
	  var isFunctionExpression = fnExpRE.test(handler.value);
	  var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
  
	  if (!handler.modifiers) {
		if (isMethodPath || isFunctionExpression) {
		  return handler.value
		}
		return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
	  } else {
		var code = '';
		var genModifierCode = '';
		var keys = [];
		for (var key in handler.modifiers) {
		  if (modifierCode[key]) {
			genModifierCode += modifierCode[key];
			// left/right
			if (keyCodes[key]) {
			  keys.push(key);
			}
		  } else if (key === 'exact') {
			var modifiers = (handler.modifiers);
			genModifierCode += genGuard(
			  ['ctrl', 'shift', 'alt', 'meta']
				.filter(function (keyModifier) { return !modifiers[keyModifier]; })
				.map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
				.join('||')
			);
		  } else {
			keys.push(key);
		  }
		}
		if (keys.length) {
		  code += genKeyFilter(keys);
		}
		// Make sure modifiers like prevent and stop get executed after key filtering
		if (genModifierCode) {
		  code += genModifierCode;
		}
		var handlerCode = isMethodPath
		  ? ("return " + (handler.value) + ".apply(null, arguments)")
		  : isFunctionExpression
			? ("return (" + (handler.value) + ").apply(null, arguments)")
			: isFunctionInvocation
			  ? ("return " + (handler.value))
			  : handler.value;
		return ("function($event){" + code + handlerCode + "}")
	  }
	}
  
	function genKeyFilter (keys) {
	  return (
		// make sure the key filters only apply to KeyboardEvents
		// #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
		// key events that do not have keyCode property...
		"if(!$event.type.indexOf('key')&&" +
		(keys.map(genFilterCode).join('&&')) + ")return null;"
	  )
	}
  
	function genFilterCode (key) {
	  var keyVal = parseInt(key, 10);
	  if (keyVal) {
		return ("$event.keyCode!==" + keyVal)
	  }
	  var keyCode = keyCodes[key];
	  var keyName = keyNames[key];
	  return (
		"_k($event.keyCode," +
		(JSON.stringify(key)) + "," +
		(JSON.stringify(keyCode)) + "," +
		"$event.key," +
		"" + (JSON.stringify(keyName)) +
		")"
	  )
	}
  
	/*  */
  
	function on (el, dir) {
	  if (dir.modifiers) {
		warn("v-on without argument does not support modifiers.");
	  }
	  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
	}
  
	/*  */
  
	function bind$1 (el, dir) {
	  el.wrapData = function (code) {
		return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
	  };
	}
  
	/*  */
  
	var baseDirectives = {
	  on: on,
	  bind: bind$1,
	  cloak: noop
	};
  
	/*  */
  
  
  
  
  
	var CodegenState = function CodegenState (options) {
	  this.options = options;
	  this.warn = options.warn || baseWarn;
	  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
	  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
	  this.directives = extend(extend({}, baseDirectives), options.directives);
	  var isReservedTag = options.isReservedTag || no;
	  this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
	  this.onceId = 0;
	  this.staticRenderFns = [];
	  this.pre = false;
	};
  
  
  
	function generate (
	  ast,
	  options
	) {
	  var state = new CodegenState(options);
	  // fix #11483, Root level <script> tags should not be rendered.
	  var code = ast ? (ast.tag === 'script' ? 'null' : genElement(ast, state)) : '_c("div")';
	  return {
		render: ("with(this){return " + code + "}"),
		staticRenderFns: state.staticRenderFns
	  }
	}
  
	function genElement (el, state) {
	  if (el.parent) {
		el.pre = el.pre || el.parent.pre;
	  }
  
	  if (el.staticRoot && !el.staticProcessed) {
		return genStatic(el, state)
	  } else if (el.once && !el.onceProcessed) {
		return genOnce(el, state)
	  } else if (el.for && !el.forProcessed) {
		return genFor(el, state)
	  } else if (el.if && !el.ifProcessed) {
		return genIf(el, state)
	  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
		return genChildren(el, state) || 'void 0'
	  } else if (el.tag === 'slot') {
		return genSlot(el, state)
	  } else {
		// component or element
		var code;
		if (el.component) {
		  code = genComponent(el.component, el, state);
		} else {
		  var data;
		  if (!el.plain || (el.pre && state.maybeComponent(el))) {
			data = genData$2(el, state);
		  }
  
		  var children = el.inlineTemplate ? null : genChildren(el, state, true);
		  code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
		}
		// module transforms
		for (var i = 0; i < state.transforms.length; i++) {
		  code = state.transforms[i](el, code);
		}
		return code
	  }
	}
  
	// hoist static sub-trees out
	function genStatic (el, state) {
	  el.staticProcessed = true;
	  // Some elements (templates) need to behave differently inside of a v-pre
	  // node.  All pre nodes are static roots, so we can use this as a location to
	  // wrap a state change and reset it upon exiting the pre node.
	  var originalPreState = state.pre;
	  if (el.pre) {
		state.pre = el.pre;
	  }
	  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
	  state.pre = originalPreState;
	  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
	}
  
	// v-once
	function genOnce (el, state) {
	  el.onceProcessed = true;
	  if (el.if && !el.ifProcessed) {
		return genIf(el, state)
	  } else if (el.staticInFor) {
		var key = '';
		var parent = el.parent;
		while (parent) {
		  if (parent.for) {
			key = parent.key;
			break
		  }
		  parent = parent.parent;
		}
		if (!key) {
		  state.warn(
			"v-once can only be used inside v-for that is keyed. ",
			el.rawAttrsMap['v-once']
		  );
		  return genElement(el, state)
		}
		return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
	  } else {
		return genStatic(el, state)
	  }
	}
  
	function genIf (
	  el,
	  state,
	  altGen,
	  altEmpty
	) {
	  el.ifProcessed = true; // avoid recursion
	  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
	}
  
	function genIfConditions (
	  conditions,
	  state,
	  altGen,
	  altEmpty
	) {
	  if (!conditions.length) {
		return altEmpty || '_e()'
	  }
  
	  var condition = conditions.shift();
	  if (condition.exp) {
		return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
	  } else {
		return ("" + (genTernaryExp(condition.block)))
	  }
  
	  // v-if with v-once should generate code like (a)?_m(0):_m(1)
	  function genTernaryExp (el) {
		return altGen
		  ? altGen(el, state)
		  : el.once
			? genOnce(el, state)
			: genElement(el, state)
	  }
	}
  
	function genFor (
	  el,
	  state,
	  altGen,
	  altHelper
	) {
	  var exp = el.for;
	  var alias = el.alias;
	  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
	  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
  
	  if (state.maybeComponent(el) &&
		el.tag !== 'slot' &&
		el.tag !== 'template' &&
		!el.key
	  ) {
		state.warn(
		  "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
		  "v-for should have explicit keys. " +
		  "See https://vuejs.org/guide/list.html#key for more info.",
		  el.rawAttrsMap['v-for'],
		  true /* tip */
		);
	  }
  
	  el.forProcessed = true; // avoid recursion
	  return (altHelper || '_l') + "((" + exp + ")," +
		"function(" + alias + iterator1 + iterator2 + "){" +
		  "return " + ((altGen || genElement)(el, state)) +
		'})'
	}
  
	function genData$2 (el, state) {
	  var data = '{';
  
	  // directives first.
	  // directives may mutate the el's other properties before they are generated.
	  var dirs = genDirectives(el, state);
	  if (dirs) { data += dirs + ','; }
  
	  // key
	  if (el.key) {
		data += "key:" + (el.key) + ",";
	  }
	  // ref
	  if (el.ref) {
		data += "ref:" + (el.ref) + ",";
	  }
	  if (el.refInFor) {
		data += "refInFor:true,";
	  }
	  // pre
	  if (el.pre) {
		data += "pre:true,";
	  }
	  // record original tag name for components using "is" attribute
	  if (el.component) {
		data += "tag:\"" + (el.tag) + "\",";
	  }
	  // module data generation functions
	  for (var i = 0; i < state.dataGenFns.length; i++) {
		data += state.dataGenFns[i](el);
	  }
	  // attributes
	  if (el.attrs) {
		data += "attrs:" + (genProps(el.attrs)) + ",";
	  }
	  // DOM props
	  if (el.props) {
		data += "domProps:" + (genProps(el.props)) + ",";
	  }
	  // event handlers
	  if (el.events) {
		data += (genHandlers(el.events, false)) + ",";
	  }
	  if (el.nativeEvents) {
		data += (genHandlers(el.nativeEvents, true)) + ",";
	  }
	  // slot target
	  // only for non-scoped slots
	  if (el.slotTarget && !el.slotScope) {
		data += "slot:" + (el.slotTarget) + ",";
	  }
	  // scoped slots
	  if (el.scopedSlots) {
		data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
	  }
	  // component v-model
	  if (el.model) {
		data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
	  }
	  // inline-template
	  if (el.inlineTemplate) {
		var inlineTemplate = genInlineTemplate(el, state);
		if (inlineTemplate) {
		  data += inlineTemplate + ",";
		}
	  }
	  data = data.replace(/,$/, '') + '}';
	  // v-bind dynamic argument wrap
	  // v-bind with dynamic arguments must be applied using the same v-bind object
	  // merge helper so that class/style/mustUseProp attrs are handled correctly.
	  if (el.dynamicAttrs) {
		data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
	  }
	  // v-bind data wrap
	  if (el.wrapData) {
		data = el.wrapData(data);
	  }
	  // v-on data wrap
	  if (el.wrapListeners) {
		data = el.wrapListeners(data);
	  }
	  return data
	}
  
	function genDirectives (el, state) {
	  var dirs = el.directives;
	  if (!dirs) { return }
	  var res = 'directives:[';
	  var hasRuntime = false;
	  var i, l, dir, needRuntime;
	  for (i = 0, l = dirs.length; i < l; i++) {
		dir = dirs[i];
		needRuntime = true;
		var gen = state.directives[dir.name];
		if (gen) {
		  // compile-time directive that manipulates AST.
		  // returns true if it also needs a runtime counterpart.
		  needRuntime = !!gen(el, dir, state.warn);
		}
		if (needRuntime) {
		  hasRuntime = true;
		  res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
		}
	  }
	  if (hasRuntime) {
		return res.slice(0, -1) + ']'
	  }
	}
  
	function genInlineTemplate (el, state) {
	  var ast = el.children[0];
	  if (el.children.length !== 1 || ast.type !== 1) {
		state.warn(
		  'Inline-template components must have exactly one child element.',
		  { start: el.start }
		);
	  }
	  if (ast && ast.type === 1) {
		var inlineRenderFns = generate(ast, state.options);
		return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
	  }
	}
  
	function genScopedSlots (
	  el,
	  slots,
	  state
	) {
	  // by default scoped slots are considered "stable", this allows child
	  // components with only scoped slots to skip forced updates from parent.
	  // but in some cases we have to bail-out of this optimization
	  // for example if the slot contains dynamic names, has v-if or v-for on them...
	  var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
		var slot = slots[key];
		return (
		  slot.slotTargetDynamic ||
		  slot.if ||
		  slot.for ||
		  containsSlotChild(slot) // is passing down slot from parent which may be dynamic
		)
	  });
  
	  // #9534: if a component with scoped slots is inside a conditional branch,
	  // it's possible for the same component to be reused but with different
	  // compiled slot content. To avoid that, we generate a unique key based on
	  // the generated code of all the slot contents.
	  var needsKey = !!el.if;
  
	  // OR when it is inside another scoped slot or v-for (the reactivity may be
	  // disconnected due to the intermediate scope variable)
	  // #9438, #9506
	  // TODO: this can be further optimized by properly analyzing in-scope bindings
	  // and skip force updating ones that do not actually use scope variables.
	  if (!needsForceUpdate) {
		var parent = el.parent;
		while (parent) {
		  if (
			(parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
			parent.for
		  ) {
			needsForceUpdate = true;
			break
		  }
		  if (parent.if) {
			needsKey = true;
		  }
		  parent = parent.parent;
		}
	  }
  
	  var generatedSlots = Object.keys(slots)
		.map(function (key) { return genScopedSlot(slots[key], state); })
		.join(',');
  
	  return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
	}
  
	function hash(str) {
	  var hash = 5381;
	  var i = str.length;
	  while(i) {
		hash = (hash * 33) ^ str.charCodeAt(--i);
	  }
	  return hash >>> 0
	}
  
	function containsSlotChild (el) {
	  if (el.type === 1) {
		if (el.tag === 'slot') {
		  return true
		}
		return el.children.some(containsSlotChild)
	  }
	  return false
	}
  
	function genScopedSlot (
	  el,
	  state
	) {
	  var isLegacySyntax = el.attrsMap['slot-scope'];
	  if (el.if && !el.ifProcessed && !isLegacySyntax) {
		return genIf(el, state, genScopedSlot, "null")
	  }
	  if (el.for && !el.forProcessed) {
		return genFor(el, state, genScopedSlot)
	  }
	  var slotScope = el.slotScope === emptySlotScopeToken
		? ""
		: String(el.slotScope);
	  var fn = "function(" + slotScope + "){" +
		"return " + (el.tag === 'template'
		  ? el.if && isLegacySyntax
			? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
			: genChildren(el, state) || 'undefined'
		  : genElement(el, state)) + "}";
	  // reverse proxy v-slot without scope on this.$slots
	  var reverseProxy = slotScope ? "" : ",proxy:true";
	  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
	}
  
	function genChildren (
	  el,
	  state,
	  checkSkip,
	  altGenElement,
	  altGenNode
	) {
	  var children = el.children;
	  if (children.length) {
		var el$1 = children[0];
		// optimize single v-for
		if (children.length === 1 &&
		  el$1.for &&
		  el$1.tag !== 'template' &&
		  el$1.tag !== 'slot'
		) {
		  var normalizationType = checkSkip
			? state.maybeComponent(el$1) ? ",1" : ",0"
			: "";
		  return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
		}
		var normalizationType$1 = checkSkip
		  ? getNormalizationType(children, state.maybeComponent)
		  : 0;
		var gen = altGenNode || genNode;
		return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
	  }
	}
  
	// determine the normalization needed for the children array.
	// 0: no normalization needed
	// 1: simple normalization needed (possible 1-level deep nested array)
	// 2: full normalization needed
	function getNormalizationType (
	  children,
	  maybeComponent
	) {
	  var res = 0;
	  for (var i = 0; i < children.length; i++) {
		var el = children[i];
		if (el.type !== 1) {
		  continue
		}
		if (needsNormalization(el) ||
			(el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
		  res = 2;
		  break
		}
		if (maybeComponent(el) ||
			(el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
		  res = 1;
		}
	  }
	  return res
	}
  
	function needsNormalization (el) {
	  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
	}
  
	function genNode (node, state) {
	  if (node.type === 1) {
		return genElement(node, state)
	  } else if (node.type === 3 && node.isComment) {
		return genComment(node)
	  } else {
		return genText(node)
	  }
	}
  
	function genText (text) {
	  return ("_v(" + (text.type === 2
		? text.expression // no need for () because already wrapped in _s()
		: transformSpecialNewlines(JSON.stringify(text.text))) + ")")
	}
  
	function genComment (comment) {
	  return ("_e(" + (JSON.stringify(comment.text)) + ")")
	}
  
	function genSlot (el, state) {
	  var slotName = el.slotName || '"default"';
	  var children = genChildren(el, state);
	  var res = "_t(" + slotName + (children ? (",function(){return " + children + "}") : '');
	  var attrs = el.attrs || el.dynamicAttrs
		? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
			// slot props are camelized
			name: camelize(attr.name),
			value: attr.value,
			dynamic: attr.dynamic
		  }); }))
		: null;
	  var bind$$1 = el.attrsMap['v-bind'];
	  if ((attrs || bind$$1) && !children) {
		res += ",null";
	  }
	  if (attrs) {
		res += "," + attrs;
	  }
	  if (bind$$1) {
		res += (attrs ? '' : ',null') + "," + bind$$1;
	  }
	  return res + ')'
	}
  
	// componentName is el.component, take it as argument to shun flow's pessimistic refinement
	function genComponent (
	  componentName,
	  el,
	  state
	) {
	  var children = el.inlineTemplate ? null : genChildren(el, state, true);
	  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
	}
  
	function genProps (props) {
	  var staticProps = "";
	  var dynamicProps = "";
	  for (var i = 0; i < props.length; i++) {
		var prop = props[i];
		var value = transformSpecialNewlines(prop.value);
		if (prop.dynamic) {
		  dynamicProps += (prop.name) + "," + value + ",";
		} else {
		  staticProps += "\"" + (prop.name) + "\":" + value + ",";
		}
	  }
	  staticProps = "{" + (staticProps.slice(0, -1)) + "}";
	  if (dynamicProps) {
		return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
	  } else {
		return staticProps
	  }
	}
  
	// #3895, #4268
	function transformSpecialNewlines (text) {
	  return text
		.replace(/\u2028/g, '\\u2028')
		.replace(/\u2029/g, '\\u2029')
	}
  
	/*  */
  
  
  
	// these keywords should not appear inside expressions, but operators like
	// typeof, instanceof and in are allowed
	var prohibitedKeywordRE = new RegExp('\\b' + (
	  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
	  'super,throw,while,yield,delete,export,import,return,switch,default,' +
	  'extends,finally,continue,debugger,function,arguments'
	).split(',').join('\\b|\\b') + '\\b');
  
	// these unary operators should not be used as property/method names
	var unaryOperatorsRE = new RegExp('\\b' + (
	  'delete,typeof,void'
	).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
  
	// strip strings in expressions
	var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
  
	// detect problematic expressions in a template
	function detectErrors (ast, warn) {
	  if (ast) {
		checkNode(ast, warn);
	  }
	}
  
	function checkNode (node, warn) {
	  if (node.type === 1) {
		for (var name in node.attrsMap) {
		  if (dirRE.test(name)) {
			var value = node.attrsMap[name];
			if (value) {
			  var range = node.rawAttrsMap[name];
			  if (name === 'v-for') {
				checkFor(node, ("v-for=\"" + value + "\""), warn, range);
			  } else if (name === 'v-slot' || name[0] === '#') {
				checkFunctionParameterExpression(value, (name + "=\"" + value + "\""), warn, range);
			  } else if (onRE.test(name)) {
				checkEvent(value, (name + "=\"" + value + "\""), warn, range);
			  } else {
				checkExpression(value, (name + "=\"" + value + "\""), warn, range);
			  }
			}
		  }
		}
		if (node.children) {
		  for (var i = 0; i < node.children.length; i++) {
			checkNode(node.children[i], warn);
		  }
		}
	  } else if (node.type === 2) {
		checkExpression(node.expression, node.text, warn, node);
	  }
	}
  
	function checkEvent (exp, text, warn, range) {
	  var stripped = exp.replace(stripStringRE, '');
	  var keywordMatch = stripped.match(unaryOperatorsRE);
	  if (keywordMatch && stripped.charAt(keywordMatch.index - 1) !== '$') {
		warn(
		  "avoid using JavaScript unary operator as property name: " +
		  "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
		  range
		);
	  }
	  checkExpression(exp, text, warn, range);
	}
  
	function checkFor (node, text, warn, range) {
	  checkExpression(node.for || '', text, warn, range);
	  checkIdentifier(node.alias, 'v-for alias', text, warn, range);
	  checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
	  checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
	}
  
	function checkIdentifier (
	  ident,
	  type,
	  text,
	  warn,
	  range
	) {
	  if (typeof ident === 'string') {
		try {
		  new Function(("var " + ident + "=_"));
		} catch (e) {
		  warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
		}
	  }
	}
  
	function checkExpression (exp, text, warn, range) {
	  try {
		new Function(("return " + exp));
	  } catch (e) {
		var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
		if (keywordMatch) {
		  warn(
			"avoid using JavaScript keyword as property name: " +
			"\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
			range
		  );
		} else {
		  warn(
			"invalid expression: " + (e.message) + " in\n\n" +
			"    " + exp + "\n\n" +
			"  Raw expression: " + (text.trim()) + "\n",
			range
		  );
		}
	  }
	}
  
	function checkFunctionParameterExpression (exp, text, warn, range) {
	  try {
		new Function(exp, '');
	  } catch (e) {
		warn(
		  "invalid function parameter expression: " + (e.message) + " in\n\n" +
		  "    " + exp + "\n\n" +
		  "  Raw expression: " + (text.trim()) + "\n",
		  range
		);
	  }
	}
  
	/*  */
  
	var range = 2;
  
	function generateCodeFrame (
	  source,
	  start,
	  end
	) {
	  if ( start === void 0 ) start = 0;
	  if ( end === void 0 ) end = source.length;
  
	  var lines = source.split(/\r?\n/);
	  var count = 0;
	  var res = [];
	  for (var i = 0; i < lines.length; i++) {
		count += lines[i].length + 1;
		if (count >= start) {
		  for (var j = i - range; j <= i + range || end > count; j++) {
			if (j < 0 || j >= lines.length) { continue }
			res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
			var lineLength = lines[j].length;
			if (j === i) {
			  // push underline
			  var pad = start - (count - lineLength) + 1;
			  var length = end > count ? lineLength - pad : end - start;
			  res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
			} else if (j > i) {
			  if (end > count) {
				var length$1 = Math.min(end - count, lineLength);
				res.push("   |  " + repeat$1("^", length$1));
			  }
			  count += lineLength + 1;
			}
		  }
		  break
		}
	  }
	  return res.join('\n')
	}
  
	function repeat$1 (str, n) {
	  var result = '';
	  if (n > 0) {
		while (true) { // eslint-disable-line
		  if (n & 1) { result += str; }
		  n >>>= 1;
		  if (n <= 0) { break }
		  str += str;
		}
	  }
	  return result
	}
  
	/*  */
  
  
  
	function createFunction (code, errors) {
	  try {
		return new Function(code)
	  } catch (err) {
		errors.push({ err: err, code: code });
		return noop
	  }
	}
  
	function createCompileToFunctionFn (compile) {
	  var cache = Object.create(null);
  
	  return function compileToFunctions (
		template,
		options,
		vm
	  ) {
		options = extend({}, options);
		var warn$$1 = options.warn || warn;
		delete options.warn;
  
		/* istanbul ignore if */
		{
		  // detect possible CSP restriction
		  try {
			new Function('return 1');
		  } catch (e) {
			if (e.toString().match(/unsafe-eval|CSP/)) {
			  warn$$1(
				'It seems you are using the standalone build of Vue.js in an ' +
				'environment with Content Security Policy that prohibits unsafe-eval. ' +
				'The template compiler cannot work in this environment. Consider ' +
				'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
				'templates into render functions.'
			  );
			}
		  }
		}
  
		// check cache
		var key = options.delimiters
		  ? String(options.delimiters) + template
		  : template;
		if (cache[key]) {
		  return cache[key]
		}
  
		// compile
		var compiled = compile(template, options);
  
		// check compilation errors/tips
		{
		  if (compiled.errors && compiled.errors.length) {
			if (options.outputSourceRange) {
			  compiled.errors.forEach(function (e) {
				warn$$1(
				  "Error compiling template:\n\n" + (e.msg) + "\n\n" +
				  generateCodeFrame(template, e.start, e.end),
				  vm
				);
			  });
			} else {
			  warn$$1(
				"Error compiling template:\n\n" + template + "\n\n" +
				compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
				vm
			  );
			}
		  }
		  if (compiled.tips && compiled.tips.length) {
			if (options.outputSourceRange) {
			  compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
			} else {
			  compiled.tips.forEach(function (msg) { return tip(msg, vm); });
			}
		  }
		}
  
		// turn code into functions
		var res = {};
		var fnGenErrors = [];
		res.render = createFunction(compiled.render, fnGenErrors);
		res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
		  return createFunction(code, fnGenErrors)
		});
  
		// check function generation errors.
		// this should only happen if there is a bug in the compiler itself.
		// mostly for codegen development use
		/* istanbul ignore if */
		{
		  if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
			warn$$1(
			  "Failed to generate render function:\n\n" +
			  fnGenErrors.map(function (ref) {
				var err = ref.err;
				var code = ref.code;
  
				return ((err.toString()) + " in\n\n" + code + "\n");
			}).join('\n'),
			  vm
			);
		  }
		}
  
		return (cache[key] = res)
	  }
	}
  
	/*  */
  
	function createCompilerCreator (baseCompile) {
	  return function createCompiler (baseOptions) {
		function compile (
		  template,
		  options
		) {
		  var finalOptions = Object.create(baseOptions);
		  var errors = [];
		  var tips = [];
  
		  var warn = function (msg, range, tip) {
			(tip ? tips : errors).push(msg);
		  };
  
		  if (options) {
			if (options.outputSourceRange) {
			  // $flow-disable-line
			  var leadingSpaceLength = template.match(/^\s*/)[0].length;
  
			  warn = function (msg, range, tip) {
				var data = { msg: msg };
				if (range) {
				  if (range.start != null) {
					data.start = range.start + leadingSpaceLength;
				  }
				  if (range.end != null) {
					data.end = range.end + leadingSpaceLength;
				  }
				}
				(tip ? tips : errors).push(data);
			  };
			}
			// merge custom modules
			if (options.modules) {
			  finalOptions.modules =
				(baseOptions.modules || []).concat(options.modules);
			}
			// merge custom directives
			if (options.directives) {
			  finalOptions.directives = extend(
				Object.create(baseOptions.directives || null),
				options.directives
			  );
			}
			// copy other options
			for (var key in options) {
			  if (key !== 'modules' && key !== 'directives') {
				finalOptions[key] = options[key];
			  }
			}
		  }
  
		  finalOptions.warn = warn;
  
		  var compiled = baseCompile(template.trim(), finalOptions);
		  {
			detectErrors(compiled.ast, warn);
		  }
		  compiled.errors = errors;
		  compiled.tips = tips;
		  return compiled
		}
  
		return {
		  compile: compile,
		  compileToFunctions: createCompileToFunctionFn(compile)
		}
	  }
	}
  
	/*  */
  
	// `createCompilerCreator` allows creating compilers that use alternative
	// parser/optimizer/codegen, e.g the SSR optimizing compiler.
	// Here we just export a default compiler using the default parts.
	var createCompiler = createCompilerCreator(function baseCompile (
	  template,
	  options
	) {
	  var ast = parse(template.trim(), options);
	  if (options.optimize !== false) {
		optimize(ast, options);
	  }
	  var code = generate(ast, options);
	  return {
		ast: ast,
		render: code.render,
		staticRenderFns: code.staticRenderFns
	  }
	});
  
	/*  */
  
	var ref$1 = createCompiler(baseOptions);
	var compile = ref$1.compile;
	var compileToFunctions = ref$1.compileToFunctions;
  
	/*  */
  
	// check whether current browser encodes a char inside attribute values
	var div;
	function getShouldDecode (href) {
	  div = div || document.createElement('div');
	  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
	  return div.innerHTML.indexOf('&#10;') > 0
	}
  
	// #3663: IE encodes newlines inside attribute values while other browsers don't
	var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
	// #6828: chrome encodes content in a[href]
	var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
  
	/*  */
  
	var idToTemplate = cached(function (id) {
	  var el = query(id);
	  return el && el.innerHTML
	});
  
	var mount = Vue.prototype.$mount;
	Vue.prototype.$mount = function (
	  el,
	  hydrating
	) {
	  el = el && query(el);
  
	  /* istanbul ignore if */
	  if (el === document.body || el === document.documentElement) {
		warn(
		  "Do not mount Vue to <html> or <body> - mount to normal elements instead."
		);
		return this
	  }
  
	  var options = this.$options;
	  // resolve template/el and convert to render function
	  if (!options.render) {
		var template = options.template;
		if (template) {
		  if (typeof template === 'string') {
			if (template.charAt(0) === '#') {
			  template = idToTemplate(template);
			  /* istanbul ignore if */
			  if (!template) {
				warn(
				  ("Template element not found or is empty: " + (options.template)),
				  this
				);
			  }
			}
		  } else if (template.nodeType) {
			template = template.innerHTML;
		  } else {
			{
			  warn('invalid template option:' + template, this);
			}
			return this
		  }
		} else if (el) {
		  template = getOuterHTML(el);
		}
		if (template) {
		  /* istanbul ignore if */
		  if (config.performance && mark) {
			mark('compile');
		  }
  
		  var ref = compileToFunctions(template, {
			outputSourceRange: "development" !== 'production',
			shouldDecodeNewlines: shouldDecodeNewlines,
			shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
			delimiters: options.delimiters,
			comments: options.comments
		  }, this);
		  var render = ref.render;
		  var staticRenderFns = ref.staticRenderFns;
		  options.render = render;
		  options.staticRenderFns = staticRenderFns;
  
		  /* istanbul ignore if */
		  if (config.performance && mark) {
			mark('compile end');
			measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
		  }
		}
	  }
	  return mount.call(this, el, hydrating)
	};
  
	/**
	 * Get outerHTML of elements, taking care
	 * of SVG elements in IE as well.
	 */
	function getOuterHTML (el) {
	  if (el.outerHTML) {
		return el.outerHTML
	  } else {
		var container = document.createElement('div');
		container.appendChild(el.cloneNode(true));
		return container.innerHTML
	  }
	}
  
	Vue.compile = compileToFunctions;
  
	return Vue;
  
  }));
  